New Results From Our Juno Mission Suggest The Planet Is Home To “shallow Lightning.” An Unexpected

Crab Nebula in technicolor! This new composite view combines data from five different telescopes, showing the celestial object in multiple kinds of light.

The video starts with a composite image of the Crab Nebula, a supernova remnant that was assembled by combining data from five telescopes spanning nearly the entire breadth of the electromagnetic spectrum: the Very Large Array, the Spitzer Space Telescope, the Hubble Space Telescope, the XMM-Newton Observatory, and the Chandra X-ray Observatory. 

It then dissolves to the red-colored radio-light view that shows how a neutron star’s fierce “wind” of charged particles from the central neutron star energized the nebula, causing it to emit the radio waves. 

The yellow-colored infrared image includes the glow of dust particles absorbing ultraviolet and visible light. 

The green-colored Hubble visible-light image offers a very sharp view of hot filamentary structures that permeate this nebula. 

The blue-colored ultraviolet image and the purple-colored X-ray image shows the effect of an energetic cloud of electrons driven by a rapidly rotating neutron star at the center of the nebula.

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Labor Day reflections: the Nancy Grace Roman Space Telescope’s primary mirror reflects an American flag hanging overhead.⁣ ⁣ The mirror, which will collect and focus light from cosmic objects near and far, has been completed. Renamed after our first chief astronomer and "Mother of Hubble," the Roman Space Telescope will capture stunning space vistas with a field of view 100 times greater than Hubble Space Telescope images. The spacecraft will study the universe using infrared light, which human eyes can’t detect without assistance. ⁣ ⁣ This Labor Day, we thank all the people who work to advance the future for humanity.⁣ ⁣ Credit: L3Harris Technologies⁣ Make sure to follow us on Tumblr for your regular dose of space: http://nasa.tumblr.com ⁣

Even star systems have identity crises. 🤷⁣ ⁣ According to data from observatories like our @nasachandraxray, a double star system has been rapidly flipping between two alter egos: a low-mass X-ray binary and a millisecond pulsar. Astronomers found this volatile double system in a dense collection of stars known as Terzan 5.⁣ ⁣ The first image from @NASAHubble shows Terzan 5 in optical light. Swipe to see the new image where low, medium and high-energy X-rays detected by Chandra are colored red, green and blue respectively. Click the link in bio for more. ⁣ ⁣

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10 Things Einstein Got Right

One hundred years ago, on May 29, 1919, astronomers observed a total solar eclipse in an ambitious  effort to test Albert Einstein’s general theory of relativity by seeing it in action. Essentially, Einstein thought space and time were intertwined in an infinite “fabric,” like an outstretched blanket. A massive object such as the Sun bends the spacetime blanket with its gravity, such that light no longer travels in a straight line as it passes by the Sun.

This means the apparent positions of background stars seen close to the Sun in the sky – including during a solar eclipse – should seem slightly shifted in the absence of the Sun, because the Sun’s gravity bends light. But until the eclipse experiment, no one was able to test Einstein’s theory of general relativity, as no one could see stars near the Sun in the daytime otherwise.

The world celebrated the results of this eclipse experiment— a victory for Einstein, and the dawning of a new era of our understanding of the universe.

General relativity has many important consequences for what we see in the cosmos and how we make discoveries in deep space today. The same is true for Einstein's slightly older theory, special relativity, with its widely celebrated equation E=mc². Here are 10 things that result from Einstein’s theories of relativity:

1. Universal Speed Limit

Einstein's famous equation E=mc² contains "c," the speed of light in a vacuum. Although light comes in many flavors – from the rainbow of colors humans can see to the radio waves that transmit spacecraft data – Einstein said all light must obey the speed limit of 186,000 miles (300,000 kilometers) per second. So, even if two particles of light carry very different amounts of energy, they will travel at the same speed.

This has been shown experimentally in space. In 2009, our Fermi Gamma-ray Space Telescope detected two photons at virtually the same moment, with one carrying a million times more energy than the other. They both came from a high-energy region near the collision of two neutron stars about 7 billion years ago. A neutron star is the highly dense remnant of a star that has exploded. While other theories posited that space-time itself has a "foamy" texture that might slow down more energetic particles, Fermi's observations found in favor of Einstein.

2. Strong Lensing

Just like the Sun bends the light from distant stars that pass close to it, a massive object like a galaxy distorts the light from another object that is much farther away. In some cases, this phenomenon can actually help us unveil new galaxies. We say that the closer object acts like a “lens,” acting like a telescope that reveals the more distant object. Entire clusters of galaxies can be lensed and act as lenses, too.

When the lensing object appears close enough to the more distant object in the sky, we actually see multiple images of that faraway object. In 1979, scientists first observed a double image of a quasar, a very bright object at the center of a galaxy that involves a supermassive black hole feeding off a disk of inflowing gas. These apparent copies of the distant object change in brightness if the original object is changing, but not all at once, because of how space itself is bent by the foreground object’s gravity.

Sometimes, when a distant celestial object is precisely aligned with another object, we see light bent into an “Einstein ring” or arc. In this image from our Hubble Space Telescope, the sweeping arc of light represents a distant galaxy that has been lensed, forming a “smiley face” with other galaxies.

3. Weak Lensing

When a massive object acts as a lens for a farther object, but the objects are not specially aligned with respect to our view, only one image of the distant object is projected. This happens much more often. The closer object’s gravity makes the background object look larger and more stretched than it really is. This is called “weak lensing.”

Weak lensing is very important for studying some of the biggest mysteries of the universe: dark matter and dark energy. Dark matter is an invisible material that only interacts with regular matter through gravity, and holds together entire galaxies and groups of galaxies like a cosmic glue. Dark energy behaves like the opposite of gravity, making objects recede from each other. Three upcoming observatories -- Our Wide Field Infrared Survey Telescope, WFIRST, mission, the European-led Euclid space mission with NASA participation, and the ground-based Large Synoptic Survey Telescope --- will be key players in this effort. By surveying distortions of weakly lensed galaxies across the universe, scientists can characterize the effects of these persistently puzzling phenomena.

Gravitational lensing in general will also enable NASA’s James Webb Space telescope to look for some of the very first stars and galaxies of the universe.

4. Microlensing

So far, we’ve been talking about giant objects acting like magnifying lenses for other giant objects. But stars can also “lens” other stars, including stars that have planets around them. When light from a background star gets “lensed” by a closer star in the foreground, there is an increase in the background star’s brightness. If that foreground star also has a planet orbiting it, then telescopes can detect an extra bump in the background star’s light, caused by the orbiting planet. This technique for finding exoplanets, which are planets around stars other than our own, is called “microlensing.”

Our Spitzer Space Telescope, in collaboration with ground-based observatories, found an “iceball” planet through microlensing. While microlensing has so far found less than 100 confirmed planets,  WFIRST could find more than 1,000 new exoplanets using this technique.

5. Black Holes

The very existence of black holes, extremely dense objects from which no light can escape, is a prediction of general relativity. They represent the most extreme distortions of the fabric of space-time, and are especially famous for how their immense gravity affects light in weird ways that only Einstein’s theory could explain.

In 2019 the Event Horizon Telescope international collaboration, supported by the National Science Foundation and other partners, unveiled the first image of a black hole’s event horizon, the border that defines a black hole’s “point of no return” for nearby material. NASA's Chandra X-ray Observatory, Nuclear Spectroscopic Telescope Array (NuSTAR), Neil Gehrels Swift Observatory, and Fermi Gamma-ray Space Telescope all looked at the same black hole in a coordinated effort, and researchers are still analyzing the results.

6. Relativistic Jets

This Spitzer image shows the galaxy Messier 87 (M87) in infrared light, which has a supermassive black hole at its center. Around the black hole is a disk of extremely hot gas, as well as two jets of material shooting out in opposite directions. One of the jets, visible on the right of the image, is pointing almost exactly toward Earth. Its enhanced brightness is due to the emission of light from particles traveling toward the observer at near the speed of light, an effect called “relativistic beaming.” By contrast, the other jet is invisible at all wavelengths because it is traveling away from the observer near the speed of light. The details of how such jets work are still mysterious, and scientists will continue studying black holes for more clues. 

7. A Gravitational Vortex

Speaking of black holes, their gravity is so intense that they make infalling material “wobble” around them. Like a spoon stirring honey, where honey is the space around a black hole, the black hole’s distortion of space has a wobbling effect on material orbiting the black hole. Until recently, this was only theoretical. But in 2016, an international team of scientists using European Space Agency's XMM-Newton and our Nuclear Spectroscopic Telescope Array (NUSTAR) announced they had observed the signature of wobbling matter for the first time. Scientists will continue studying these odd effects of black holes to further probe Einstein’s ideas firsthand.

Incidentally, this wobbling of material around a black hole is similar to how Einstein explained Mercury’s odd orbit. As the closest planet to the Sun, Mercury feels the most gravitational tug from the Sun, and so its orbit’s orientation is slowly rotating around the Sun, creating a wobble.

 8. Gravitational Waves

Ripples through space-time called gravitational waves were hypothesized by Einstein about 100 years ago, but not actually observed until recently. In 2016, an international collaboration of astronomers working with the Laser Interferometer Gravitational-Wave Observatory (LIGO) detectors announced a landmark discovery: This enormous experiment detected the subtle signal of gravitational waves that had been traveling for 1.3 billion years after two black holes merged in a cataclysmic event. This opened a brand new door in an area of science called multi-messenger astronomy, in which both gravitational waves and light can be studied.

For example, our telescopes collaborated to measure light from two neutron stars merging after LIGO detected gravitational wave signals from the event, as announced in 2017. Given that gravitational waves from this event were detected mere 1.7 seconds before gamma rays from the merger, after both traveled 140 million light-years, scientists concluded Einstein was right about something else: gravitational waves and light waves travel at the same speed.

9. The Sun Delaying Radio Signals

Planetary exploration spacecraft have also shown Einstein to be right about general relativity. Because spacecraft communicate with Earth using light, in the form of radio waves, they present great opportunities to see whether the gravity of a massive object like the Sun changes light’s path.  

In 1970, our Jet Propulsion Laboratory announced that Mariner VI and VII, which completed flybys of Mars in 1969, had conducted experiments using radio signals — and also agreed with Einstein. Using NASA’s Deep Space Network (DSN), the two Mariners took several hundred radio measurements for this purpose. Researchers measured the time it took for radio signals to travel from the DSN dish in Goldstone, California, to the spacecraft and back. As Einstein would have predicted, there was a delay in the total roundtrip time because of the Sun’s gravity. For Mariner VI, the maximum delay was 204 microseconds, which, while far less than a single second, aligned almost exactly with what Einstein’s theory would anticipate.

In 1979, the Viking landers performed an even more accurate experiment along these lines. Then, in 2003 a group of scientists used NASA’s Cassini Spacecraft to repeat these kinds of radio science experiments with 50 times greater precision than Viking. It’s clear that Einstein’s theory has held up! 

10. Proof from Orbiting Earth

In 2004, we launched a spacecraft called Gravity Probe B specifically designed to watch Einstein’s theory play out in the orbit of Earth. The theory goes that Earth, a rotating body, should be pulling the fabric of space-time around it as it spins, in addition to distorting light with its gravity.

The spacecraft had four gyroscopes and pointed at the star IM Pegasi while orbiting Earth over the poles. In this experiment, if Einstein had been wrong, these gyroscopes would have always pointed in the same direction. But in 2011, scientists announced they had observed tiny changes in the gyroscopes’ directions as a consequence of Earth, because of its gravity, dragging space-time around it.

BONUS: Your GPS! Speaking of time delays, the GPS (global positioning system) on your phone or in your car relies on Einstein’s theories for accuracy. In order to know where you are, you need a receiver – like your phone, a ground station and a network of satellites orbiting Earth to send and receive signals. But according to general relativity, because of Earth’s gravity curving spacetime, satellites experience time moving slightly faster than on Earth. At the same time, special relativity would say time moves slower for objects that move much faster than others.

When scientists worked out the net effect of these forces, they found that the satellites’ clocks would always be a tiny bit ahead of clocks on Earth. While the difference per day is a matter of millionths of a second, that change really adds up. If GPS didn’t have relativity built into its technology, your phone would guide you miles out of your way!

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From Seed to Market: How NASA brings food to the table

Did you know we help farmers grow some of your favorite fruits, veggies and grains?

Our Earth-observing satellites track rainfall amounts, soil moisture, crop health, and more. On the ground, we partner with agencies and organizations around the world to help farmers use that data to care for their fields.

Here are a few ways we help put food on the table, from planting to harvest.

Planting

Did you plant seeds in science class to watch them sprout and grow? They all needed water, right? Our data helps farmers “see” how moist the soil is across large fields.

“When you’re not sure when to water your flowers or your garden, you can look at the soil or touch it with your hands. We are sort of ‘feeling’ the soil, sensing how much water is in the soil – from a satellite,

685 kilometers (408 miles) above Earth,” said John Bolten, the associate program manager of water resources for NASA’s Applied Sciences Program.

This spring, we worked with the U.S. Department of Agriculture and George Mason University to release Crop-CASMA, a tool that shows soil moisture and vegetation conditions for the United States. Able to see smaller areas – about the size of a couple of golf courses – the USDA uses Crop-CASMA to help update farmers on their state’s soil moisture, crop health and growing progress.

Growing

It’s dangerous being a seedling.

Heavy spring rains or summer storms can flood fields and drown growing plants. Dry spells and droughts can starve them of nutrients. Insects and hail can damage them. Farmers need to keep a close eye on plants during the spring and summer months. Our data and programs help them do that.

For example, in California, irrigation is essential for agriculture. California’s Central Valley annually produces more than 250 types of crops and is one of the most productive agricultural regions in the country – but it’s dry. Some parts only get 6 inches of rain per year.

To help, Landsat data powers CropManage – an app that tells farmers how long to irrigate their fields, based on soil conditions and evapotranspiration, or how much water plants are releasing into the atmosphere. The warmer and drier the atmosphere, the more plants “sweat” and lose water that needs to be replenished. Knowing how long to irrigate helps farmers conserve water and be more efficient. In years like 2021, intense droughts can make water management especially critical.

Harvest

Leading up to harvest, farmers need to know their expected yields – and profits.

GEOGLAM, or the Group on Earth Observations Global Agricultural Monitoring Initiative, is a partnership between NASA Harvest, USDA’s Foreign Agricultural Service (FAS) and other global agencies to track and report on crop conditions around the world.

USDA FAS is one of the main users of a soil moisture measurement product developed by Bolten and his team at our NASA Goddard Space Flight Center to drive their crop forecasting system.

If you’re interested in more ways we support agriculture, stay tuned over the next few weeks to learn more about how satellites (and scientists) help put snacks on your table!

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This is no Westeros. On April 8, 2019, the Landsat 8 satellite acquired a scene of contrasts in Russia: a fire surrounded by ice.

Between chunks of frozen land and lakes in the Magadan Oblast district of Siberia, a fire burned and billowed smoke plumes that were visible from space.

Not much is known about the cause of the fire, east of the town of Evensk. Forest fires are common in this heavily forested region, and the season usually starts in April or May. Farmers also burn old crops to clear fields and replenish the soil with nutrients, also known as ‘slash and burn agriculture’; such fires occasionally burn out of control. Land cover maps, however, show that this fire region is mainly comprised of shrublands, not croplands.

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Six Science-y Shipments Sent to the Space Station

Northrop Grumman launched its Cygnus spacecraft into orbit to the International Space Station at 4:01 a.m. EST on Nov. 17 from Wallops Flight Facility in Virginia. Cygnus launched on an Antares rocket carrying crew supplies, equipment and scientific research to crewmembers aboard the station. The spacecraft is named after NASA astronaut and U.S. Navy officer John Young, who walked on the Moon during Apollo 16 and commanded the first space shuttle mission. Throughout his lifetime, Young logged 835 hours in space over the course of six missions.

Antares launched the S.S. John Young from the Mid-Atlantic Regional Spaceport’s Pad-0A on Wallops Island, carrying tons of cargo, including scientific investigations that will study 3D printing and recycling, cement solidification, and crystals that may fight Parkinson’s disease.

Here’s a look at six science-y experiments and research this mission will deliver to the space station.

1. 3D printing and recycling

Refabricator demonstrates an integrated 3D printer and recycler for the first time aboard the space station.

It recycles waste plastic materials into high-quality 3D-printer filament, which could enable sustainable fabrication, repair, and recycling on long-duration space missions.

2. Sensory input in microgravity

Changes in sensory input in microgravity may be misinterpreted and cause a person to make errors in estimation of velocity, distance or orientation.

VECTION, a Canadian Space Agency (CSA) investigation, examines this effect as well as whether people adapt to altered sensory input on long-duration missions and how that adaptation changes upon return to Earth.

3. Solidifying cement in space

The MVP-Cell 05 investigation uses a centrifuge to provide a variable gravity environment to study the complex process of cement solidification, a step toward eventually making and using concrete on extraterrestrial bodies.

4. From stardust to solar systems

Much of the universe was created when dust from star-based processes clumped into intermediate-sized particles and eventually became planets, moons and other objects. Many questions remain as to just how this worked, though.

The EXCISS investigation seeks answers by simulating the high-energy, low gravity conditions that were present during formation of the early solar system. Scientists plan to zap a specially formulated dust with an electrical current, then study the shape and texture of pellets formed.

5. Growing crystals to fight Parkinson’s disease

The CASIS PCG-16 investigation grows large crystals of an important protein, Leucine-rich repeat kinase 2, or LRRK2, in microgravity for analysis back on Earth.

This protein is implicated in development of Parkinson’s disease, and defining its shape and morphology may help scientists better understand the pathology of the disease and develop therapies to treat it. Crystals of LRRK2 grown in gravity are too small and too compact to study, making microgravity an essential part of this research.

6. Better gas separation membranes

Membranes represent one of the most energy-efficient and cost-effective technologies for separating and removing carbon dioxide from waste gases, thereby reducing greenhouse gas emissions. CEMSICA tests membranes made from particles of calcium-silicate (C-S) with pores 100 nanometers or smaller. Producing these membranes in microgravity may resolve some of the challenges of their manufacture on Earth and lead to development of lower-cost, more durable membranes that use less energy. The technology ultimately may help reduce the harmful effects of CO2 emissions on the planet.

For daily updates, follow @ISS_Research.

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SPACE: A Global Frontier

Space is a global frontier. That’s why we partner with nations all around the world to further the advancement of science and to push the boundaries of human exploration. With international collaboration, we have sent space telescopes to observe distant galaxies, established a sustainable, orbiting laboratory 254 miles above our planet’s surface and more! As we look forward to the next giant leaps in space exploration with our Artemis lunar exploration program, we will continue to go forth with international partnerships!

Teamwork makes the dream work. Here are a few of our notable collaborations:

Artemis Program

Our Artemis lunar exploration program will send the first woman and the next man to the Moon by 2024. Using innovative technologies and international partnerships, we will explore more of the lunar surface than ever before and establish sustainable missions by 2028.

During these missions, the Orion spacecraft will serve as the exploration vehicle that will carry the crew to space, provide emergency abort capability and provide safe re-entry from deep space return velocities. The European Service Module, provided by the European Space Agency, will serve as the spacecraft’s powerhouse and supply it with electricity, propulsion, thermal control, air and water in space.

The Gateway, a small spaceship that will orbit the Moon, will be a home base for astronauts to maintain frequent and sustainable crewed missions to the lunar surface. With the help of a coalition of nations, this new spaceship will be assembled in space and built within the next decade.

Gateway already has far-reaching international support, with 14 space agencies agreeing on its importance in expanding humanity's presence on the Moon, Mars and deeper into the solar system.

International Space Station

The International Space Station (ISS) is one of the most ambitious international collaborations ever attempted. Launched in 1998 and involving the U.S., Russia, Canada, Japan and the participating countries of the European Space Agency — the ISS has been the epitome of global cooperation for the benefit of humankind. The largest space station ever constructed, the orbital laboratory continues to bring together international flight crews, globally distributed launches, operations, training, engineering and the world’s scientific research community.

Hubble Space Telescope 

The Hubble Space Telescope, one of our greatest windows into worlds light-years away, was built with contributions from the European Space Agency (ESA).

ESA provided the original Faint Object Camera and solar panels, and continues to provide science operations support for the telescope. 

Deep Space Network

The Deep Space Network (DSN) is an international array of giant radio antennas that span the world, with stations in the United States, Australia and Spain. The three facilities are equidistant approximately one-third of the way around the world from one another – to permit constant communication with spacecraft as our planet rotates. The network supports interplanetary spacecraft missions and a few that orbit Earth. It also provides radar and radio astronomy observations that improve our understanding of the solar system and the larger universe!

Mars Missions 

Information gathered today by robots on Mars will help get humans to the Red Planet in the not-too-distant future. Many of our Martian rovers – both past, present and future – are the products of a coalition of science teams distributed around the globe. Here are a few notable ones:

Curiosity Mars Rover 

France: ChemCam, the rover’s laser instrument that can analyze rocks from more than 20 feet away

Russia: DAN, which looks for subsurface water and water locked in minerals

Spain: REMS, the rover’s weather station

InSight Mars Lander

France with contributions from Switzerland: SEIS, the first seismometer on the surface of another planet

Germany: HP3, the heatflow probe that will help us understand the interior structure of Mars

Spain: APSS, the lander’s weather station

Mars 2020 Rover

Norway: RIMFAX, a ground-penetrating radar

France: SuperCam, the laser instrument for remote science

Spain: MEDA, the rover’s weather station

Space-Analog Astronaut Training

We partner with space agencies around the globe on space-analog missions. Analog missions are field tests in locations that have physical similarities to the extreme space environments. They take astronauts to space-like environments to prepare as international teams for near-term and future exploration to asteroids, Mars and the Moon.

The European Space Agency hosts the Cooperative Adventure for Valuing and Exercising human behavior and performance Skills (CAVES) mission. The two week training prepares multicultural teams of astronauts to work safely and effectively in an environment where safety is critical. The mission is designed to foster skills such as communication, problem solving, decision-making and team dynamics.

We host our own analog mission, underwater! The NASA Extreme Environment Mission Operations (NEEMO) project sends international teams of astronauts, engineers and scientists to live in the world’s only undersea research station, Aquarius, for up to three weeks. Here, “aquanauts” as we call them, simulate living on a spacecraft and test spacewalk techniques for future space missions in hostile environments.

International Astronautical Congress 

So, whether we’re collaborating as a science team around the globe, or shoulder-to-shoulder on a spacewalk, we are committed to working together with international partners for the benefit of all humanity! 

If you’re interested in learning more about how the global space industry works together, check out our coverage of the 70th International Astronautical Congress (IAC) happening this week in Washington, D.C. IAC is a yearly gathering in which all space players meet to talk about the advancements and progress in exploration.

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It’s Women in Engineering Day

Today, June 23 is International Women in Engineering Day. We have many talented women across NASA that contribute to our success to reach for new heights and reveal the unknown for the benefit of humankind.

Happy Int'l Women in Engr Day! Love working @nasa to plan spacewalks, train astronauts, & flight control! #INWED17 #IAmANASAEngineer #nasa pic.twitter.com/pasndXB8sS

— Grier Wilt (@grierlauren)

June 23, 2017

Hearing from them illuminates the vibrant community of dedicated women who play a vital role at the agency. These women have pushed to pursue their dreams and make a difference everyday at NASA. 

Happy International Women in Engineering Day! #INWED17 #IAmANASAEngineer pic.twitter.com/yvhhAzGUYv

— ~Alexandria~ (@DOPECHICKBEATS)

June 23, 2017

We hope that these stories will inspire girls everywhere to reach for the stars and explore the myriad of opportunities available to them through pursuing careers in science, technology, engineering and mathematics.

Proud to call these awesome @NASA_Johnson women engineers my friends! Happy Int'l Women in Engineering Day! #INWED17 #IAmANASAEngineer @NASA pic.twitter.com/qGSiR2xVFo

— Jenny On Console (@JennyOnConsole)

June 23, 2017

Join us as we celebrate the achievements of our outstanding women engineers.

Happy International Women in Engineering Day!#IAmANASAEngineer #INWED17 #INWED2017 #KSC @NASA_LSP @NASA @NASAKennedy @kelleyjoooones pic.twitter.com/RRCt75ff5g

— Laura P. Rose (@lauraprose)

June 23, 2017

Learn more and hear stories from the Women at NASA community by visiting http://women.nasa.gov.

We are the smart, incredible women of @LockheedMartin that are building @NASA_Orion at @NASAKennedy ! #INWED17 #IAmANASAEngineer pic.twitter.com/HurWOvhYIn

— Chelsea (@Queen_Of_Quarks)

June 23, 2017

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One Year of Leadership

It’s been one year since Jim Bridenstine was sworn in as our 13th administrator, starting the job on April 23, 2018. Since then, he has led the agency towards taking our nation farther than ever before — from assigning the first astronauts to fly on commercial vehicles to the International Space Station, to witnessing New Horizon’s arrival at the farthest object ever explored, to working to meet the challenge of landing humans on the lunar surface by 2024.

Here is a look at what happened in the last year under the Administrator’s leadership:

1. Assigned the first astronauts to fly on commercial spacecraft to the International Space Station.

Administrator Bridenstine introduced to the world on Aug. 3, 2018 the first U.S. astronauts who will fly on American-made, commercial spacecraft to and from the International Space Station — an endeavor that will return astronaut launches to U.S. soil for the first time since the space shuttle’s retirement in 2011.

“Today, our country’s dreams of greater achievements in space are within our grasp,” said Administrator Bridenstine. “This accomplished group of American astronauts, flying on new spacecraft developed by our commercial partners Boeing and SpaceX, will launch a new era of human spaceflight.”

2. Announced the first commercial effort to regularly send science payloads to the Moon.

Administrator Bridenstine announced new Moon partnerships with American companies — an important step to achieving long-term scientific study and human exploration of the Moon and Mars. Nine U.S. companies were named as eligible to bid on NASA delivery services to the Moon through Commercial Lunar Payload Services (CLPS) contracts on Nov. 29, 2018.  

3. Witnessed the teamwork that led to the latest mission to the Red Planet with Mars InSight’s landing.

On Nov. 26, 2018, the InSight lander successfully touched down on Mars after an almost seven-month, 300-million-mile (485-million-kilometer) journey from Earth. Administrator Bridenstine celebrated with the members of Mars Cube One and Mars InSight team members after the Mars lander successfully landed and began its mission to study the “inner space” of Mars: its crust, mantle and core.

"Today, we successfully landed on Mars for the eighth time in human history,” said NASA Administrator Jim Bridenstine. “InSight will study the interior of Mars, and will teach us valuable science as we prepare to send astronauts to the Moon and later to Mars…The best of NASA is yet to come, and it is coming soon.”

4. Oversaw the arrival of the first American mission to an asteroid designed to return samples and New Horizon’s arrival at Ultima Thule, the farthest object ever explored.

The spacecraft OSIRIS-REx traveled 1.4 million miles (2.2 million kilometers) to arrive at the asteroid Bennu on Dec. 3. The first asteroid sample mission is helping scientists investigate how planets formed and how life began, as well as improve our understanding of asteroids that could impact Earth. OSIRIS-Rex has already revealed water locked inside the clays that make up the asteroid.

And on the early hours of New Year’s Day, 2019, our New Horizons spacecraft flew past Ultima Thule in Kuiper belt, a region of primordial objects that hold keys to understanding the origins of the solar system.

“In addition to being the first to explore Pluto, today New Horizons flew by the most distant object ever visited by a spacecraft and became the first to directly explore an object that holds remnants from the birth of our solar system,” said Administrator Bridenstine. “This is what leadership in space is all about.”

5. Directed the first major milestone in commercial crew flights with the successful Space X Demo-1 mission.

Demonstration Mission-1 (Demo-1) was an uncrewed flight test designed to demonstrate a new commercial capability developed under NASA’s Commercial Crew Program. The mission began March 2, when the Crew Dragon launched from NASA’s Kennedy Space Center in Florida and docked to the International Space Station for five days.

“Today’s successful re-entry and recovery of the Crew Dragon capsule after its first mission to the International Space Station marked another important milestone in the future of human spaceflight,” said Administrator Bridenstine. “I want to once again congratulate the NASA and SpaceX teams on an incredible week. Our Commercial Crew Program is one step closer to launching American astronauts on American rockets from American soil.”

6. Is currently working to meet the challenge of advancing human exploration of the lunar surface to 2024.

Administrator Bridenstine has accomplished a lot since he swore in one year ago — but the best is yet to come. On March 26, Vice President Mike Pence tasked our agency with returning American astronauts to the Moon by 2024 at the fifth meeting of the National Space Council. 

“It is the right time for this challenge, and I assured the Vice President that we, the people of NASA, are up to the challenge,” said Administrator Bridenstine. “There’s a lot of excitement about our plans and also a lot of hard work and challenges ahead, but I know the NASA workforce and our partners are up to it.”

Learn more about what’s still to come this year at NASA:

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