7 Things To Know About The Perseverance Mars Rover

Space Food

Food: everyone needs it to survive and in space there’s no exception. Let’s take a closer look at what astronauts eat while in space. 

Since the start of human spaceflight, we’ve worked to improve the taste, texture and shelf life of food for our crews. Our food scientists are challenged with developing healthy menus that can meet all of the unique requirements for living and working in the extreme environment of space.

Consider the differences of living on Earth and in space. Food scientists must develop foods that will be easier to handle and consume in a microgravity environment. These food products require no refrigeration and provide the nutrition humans need to remain healthy during spaceflight.

Freeze drying food allows food to remain stable at ambient temperatures, while also significantly reducing the weight.

Fun Facts About Space Food:

Astronauts use tortillas in many of their meals

Tortillas provide an edible wrapper to keep food from floating away. Why tortillas and not bread? Tortillas make far less crumbs and can be stored easier. Bread crumbs could potentially float around and get stuck in filters or equipment.

The first food eaten by an American astronaut in space: Applesauce

The first American astronaut to eat in space dined on applesauce squeezed from a no-frills, aluminum toothpaste-like tube. Since then, food technology has cooked up better ways to prepare, package and preserve space fare in a tastier, more appetizing fashion.

All food that is sent to the space station is precooked

Sending precooked food means that it requires no refrigeration and is either ready to eat or can be prepared simply by adding water or by heating. The only exception are the fruit and vegetables stowed in the fresh food locker.

Salt and pepper are used in liquid form on the International Space Station

Seasonings like salt and pepper have to be used in liquid form and dispensed through a bottle on the space station. If they were granulated, the particles would float away before they even reached the food.

Food can taste bland in space

Some people who live in space have said that food is not the same while in microgravity. Some say that it tastes bland, some do not like their favorite foods and some love to eat foods they would never eat on Earth. We believe this phenomenon is caused by something called “stuffy head” This happens when crew member’s heads get stopped up because blood collects in the upper part of the body. For this reason, hot sauce is used A LOT on the space station to make up for the bland flavor.

Astronaut ice cream is not actually eaten on the space station

Even though astronaut ice cream is sold in many science centers and enjoyed by many people on Earth, it’s not actually sent to the space station. That said, whenever there is space in a freezer heading to orbit, the astronauts can get real ice cream onboard! 

Instead of bowls there are bags and cans

Most American food is stored in sealed bags, while most Russian food is kept in cans. 

Here’s what the crew aboard the space station enjoyed during Thanksgiving in 2015: 

Smoked Turkey

Candied Yams

Rehydratable Corn

Potatoes Au Gratin 

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Earth’s Land Ice by the Numbers

“At a glacial pace” used to mean moving so slowly the movement is almost imperceptible. Lately though, glaciers are moving faster. Ice on land is melting and flowing, sending water to the oceans, where it raises sea levels.

In 2018, we launched the Ice, Cloud and Land Elevation Satellite-2 (ICESat-2) to continue a global record of ice elevation. Now, the results are in. Using millions of measurements from a laser in space and quite a bit of math, researchers have confirmed that Earth is rapidly losing ice.

16 Years 

ICESat-2 was a follow-up mission to the original ICESat, which launched in 2003 and took measurements until 2009. Comparing the two records tells us how much ice sheets have lost over 16 years.

½ Inch

During those 16 years, melting ice from Antarctica and Greenland was responsible for just over a half-inch of sea level rise. When ice on land melts, it eventually finds its way to the ocean. The rapid melt at the poles is no exception.

400,000 Olympic Swimming Pools

One gigaton of ice holds enough water to fill 400,000 Olympic swimming pools. It’s also enough ice to cover Central Park in New York in more than 1,000 feet of ice.

200 Gigatons

Between 2003 and 2019, Greenland lost 200 gigatons of ice per year. That’s 80 million Olympic swimming pools reaching the ocean every year, just from Greenland alone.

118 Gigatons

During the same time period, Antarctica lost 118 gigatons of ice per year. That’s another 47 million Olympic swimming pools every year. While there has been some elevation gain in the continent’s center from increased snowfall, it’s nowhere near enough to make up for how much ice is lost to the sea from coastal glaciers.

10,000 Pulses

ICESat-2 sends out 10,000 pulses of laser light a second down to Earth’s surface and times how long it takes them to return to the satellite, down to a billionth of a second. That’s how we get such precise measurements of height and changing elevation.

These numbers confirm what scientists have been finding in most previous studies and continue a long record of data showing how Earth’s polar ice is melting. ICESat-2 is a key tool in our toolbox to track how our planet is changing.

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Tomorrow’s Technology on the Space Station Today

Tablets, smart appliances, and other technologies that are an indispensable part of daily life are no longer state-of-the-art compared to the research and technology development going on over our heads. As we celebrate 20 years of humans continuously living and working in space aboard the International Space Station, we’re recapping some of the out-of-this-world tech development and research being done on the orbiting lab too.

Our Space Technology Mission Directorate (STMD) helps redefine state-of-the-art tech for living and working in space. Here are 10 technologies tried and tested on the space station with helping hands from its astronaut occupants over the years.

1. Astronaut Wanna-Bees

Astronauts on the space station are responsible for everything from conducting science experiments and deploying satellites to tracking inventory and cleaning. While all are necessary, the crew can delegate some jobs to the newest robotic inhabitants – Astrobees.

These cube-shaped robots can work independently or in tandem, carrying out research activities. Once they prove themselves, the bots will take on some of the more time-consuming tasks, such as monitoring the status of dozens of experiments. The three robots – named Bumble, Honey, and Queen – can operate autonomously following a programmed set of instructions or controlled remotely. Each uses cameras for navigation, fans for propulsion, and a rechargeable battery for power. The robots also have a perching arm that lets them grip handrails or hold items. These free-flying helpers take advantage of another STMD technology called Gecko Grippers that “stick” to any surface.

2. Getting a Grip in Microgravity

We wanted to develop tools for grabbing space junk, and something strong and super-sticky is necessary to collect the diverse material orbiting Earth. So, engineers studied the gecko lizard, perhaps the most efficient “grabber” on this planet. Millions of extremely fine hairs on the bottom of their feet make an incredible amount of contact with surfaces so the gecko can hold onto anything. That inspired our engineers to create a similar material.

Now the Gecko Gripper made by OnRobot is sold on the commercial market, supporting industrial activities such as materials handling and assembly. The NASA gecko adhesive gripper that’s being tested in microgravity on the Astrobee robots was fabricated on Earth. But other small plastic parts can now be manufactured in space.

3. Make It, or Don’t Take It

Frequent resupply trips from Earth to the Moon, Mars, and other solar system bodies are simply not realistic. In order to become truly Earth-independent and increase sustainability, we had to come up with ways to manufacture supplies on demand.

A demonstration of the first 3D printer in space was tested on the space station in 2014, proving it worked in microgravity. This paved the way for the first commercial 3D printer in space, which is operated by Made In Space. It has successfully produced more than 150 parts since its activation in 2016. Designs for tools, parts, and many other objects are transmitted to the station by the company, which also oversees the print jobs. Different kinds of plastic filaments use heat and pressure in a process that’s similar to the way a hot glue gun works. The molten material is precisely deposited using a back-and-forth motion until the part forms. The next logical step for efficient 3D printing was using recycled plastics to create needed objects.

4. The Nine Lives of Plastic

To help fragile technology survive launch and keep food safe for consumption, NASA employs a lot of single-use plastics. That material is a valuable resource, so we are developing a number of ways to repurpose it. The Refabricator, delivered to the station in 2018, is designed to reuse everything from plastic bags to packing foam. The waste plastic is super-heated and transformed into the feedstock for its built-in 3D printer. The filament can be used repeatedly: a 3D-printed wrench that’s no longer needed can be dropped into the machine and used to make any one of the pre-programmed objects, such as a spoon. The dorm-fridge-sized machine created by Tethers Unlimited Inc. successfully manufactured its first object, but the technology experienced some issues in the bonding process likely due to microgravity’s effect on the materials. Thus, the Refabricator continues to undergo additional testing to perfect its performance.

5. Speed Metal

An upcoming hardware test on the station will try out a new kind of 3D printer. The on-demand digital manufacturing technology is capable of using different kinds of materials, including plastic and metals, to create new parts. We commissioned TechShot Inc. to build the hardware to fabricate objects made from aerospace-grade metals and electronics. On Earth, FabLab has already demonstrated its ability to manufacture strong, complex metal tools and other items. The unit includes a metal additive manufacturing process, furnace, and endmill for post-processing. It also has built-in monitoring for in-process inspection. When the FabLab is installed on the space station, it will be remotely operated by controllers on Earth. Right now, another printer created by the same company is doing a different kind of 3D printing on station.

6. A Doctor’s BFF

Today scientists are also learning to 3D print living tissues. However, the force of gravity on this planet makes it hard to print cells that maintain their shape. So on Earth, scientists use scaffolding to help keep the printed structures from collapsing.

The 3D BioFabrication Facility (BFF) created by TechShot Inc. could provide researchers a gamechanger that sidesteps the need to use scaffolds by bioprinting in microgravity. This first American bioprinter in space uses bio-inks that contain adult human cells along with a cell-culturing system to strengthen the tissue over time. Eventually, that means that these manufactured tissues will keep their shape once returned to Earth’s gravity! While the road to bioprinting human organs is likely still many years away, these efforts on the space station may move us closer to that much-needed capability for the more than 100,000 people on the wait list for organ transplant.

7. Growing Vitamins

Conditions in space are hard on the human body, and they also can be punishing on food. Regular deliveries of food to the space station refresh the supply of nutritious meals for astronauts. But prepackaged food stored on the Moon or sent to Mars in advance of astronauts could lose some nutritional value over time.

That’s why the BioNutrients experiment is underway. Two different strains of baker’s yeast which are engineered to produce essential nutrients on demand are being checked for shelf life in orbit. Samples of the yeast are being stored at room temperature aboard the space station and then are activated at different intervals, frozen, and returned to Earth for evaluation. These tests will allow scientists to check how long their specially-engineered microbes can be stored on the shelf, while still supplying fresh nutrients that humans need to stay healthy in space. Such microbes must be able to be stored for months, even years, to support the longer durations of exploration missions. If successful, these space-adapted organisms could also be engineered for the potential production of medicines. Similar organisms used in this system could provide fresh foods like yogurt or kefir on demand. Although designed for space, this system also could help provide nutrition for people in remote areas of our planet.

8. Rough and Ready

Everything from paints and container seals to switches and thermal protection systems must withstand the punishing environment of space. Atomic oxygen, charged-particle radiation, collisions with meteoroids and space debris, and temperature extremes (all combined with the vacuum) are just some conditions that are only found in space. Not all of these can be replicated on Earth. In 2001, we addressed this testing problem with the Materials International Space Station Experiment (MISSE). Technologists can send small samples of just about any technology or material into low-Earth orbit for six months or more. Mounted to the exterior of the space station, MISSE has tested more than 4,000 materials. More sophisticated hardware developed over time now supports automatic monitoring that sends photos and data back to researchers on Earth. Renamed the MISSE Flight Facility, this permanent external platform is now owned and operated by the small business, Alpha Space Test & Research Alliance LLC. The woman-owned company is developing two similar platforms for testing materials and technologies on the lunar surface.

9. Parachuting to Earth

Small satellites could provide a cheaper, faster way to deliver small payloads to Earth from the space station. To do just that, the Technology Education Satellite, or TechEdSat, develops the essential technologies with a series of CubeSats built by college students in partnership with NASA. In 2017, TechEdSat-6 deployed from the station, equipped with a custom-built parachute called exo-brake to see if a controlled de-orbit was possible. After popping out of the back of the CubeSat, struts and flexible cords warped the parachute like a wing to control the direction in which it travelled. The exo-brake uses atmospheric drag to steer a small satellite toward a designated landing site. The most recent mission in the series, TechEdSat-10, was deployed from the station in July with an improved version of an exo-brake. The CubeSat is actively being navigated to the target entry point in the vicinity of the NASA’s Wallops Flight Facility on Wallops Island, Virginia.

10. X-ray Vision for a Galactic Position System

Independent navigation for spacecraft in deep space is challenging because objects move rapidly and the distances between are measured in millions of miles, not the mere thousands of miles we’re used to on Earth. From a mission perched on the outside of the station, we were able to prove that X-rays from pulsars could be helpful. A number of spinning neutron stars consistently emit pulsating beams of X-rays, like the rotating beacon of a lighthouse. Because the rapid pulsations of light are extremely regular, they can provide the precise timing required to measure distances.

The Station Explorer for X-Ray Timing and Navigation (SEXTANT) demonstration conducted on the space station in 2017 successfully measured pulsar data and used navigation algorithms to locate the station as it moved in its orbit. The washing machine-sized hardware, which also produced new neutron star science via the Neutron star Interior Composition Explorer (NICER), can now be miniaturized to develop detectors and other hardware to make pulsar-based navigation available for use on future spacecraft.

As NASA continues to identify challenges and problems for upcoming deep space missions such as Artemis, human on Mars, and exploring distant moons such as Titan, STMD will continue to further technology development on the space station and Earth.

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This composite image shows a coronal mass ejection, a type of space weather linked to solar energetic particles, as seen from two space-based solar observatories and one ground-based instrument. The image in gold is from NASA’s Solar Dynamics Observatory, the image in blue is from the Manua Loa Solar Observatory’s K-Cor coronagraph, and the image in red is from ESA and NASA’s Solar and Heliospheric Observatory.

Our constantly-changing sun sometimes erupts with bursts of light, solar material, or ultra-fast energized particles — collectively, these events contribute to space weather. A new study shows that the warning signs of one type of space weather event can be detected tens of minutes earlier than with current forecasting techniques – critical extra time that could help protect astronauts in space. 

Credits: NASA/ESA/SOHO/SDO/Joy Ng and MLSO/K-Cor

Wonder what it’s like to fly for NASA Earth science expeditions? Ask our research pilot anything! 

This January, we’re kicking off five new airborne Earth science expeditions aimed at studying our home planet from the land, sea and air. Here’s your chance to hear what it’s like from the cockpit! 

Research pilot Dean “Gucci” Neeley will be taking your questions in an Answer Time session on Friday, January 10 from 12-1pm ET here on NASA’s Tumblr! Find out what it’s like to fly research aircraft that use the vantage point of space to increase our understanding of Earth, improve lives and safeguard our future! Make sure to ask your question now by visiting http://nasa.tumblr.com/ask!

Dean Neeley, retired U.S. Air Force officer and pilot, joined our Armstrong Flight Research Center in 2012 as a research pilot. Neeley flies a diverse array of highly modified airborne science, research and mission support aircraft such as the single-seat Lockheed ER-2 high-altitude science jet. The ER-2 collects information about Earth resources, celestial observations, atmospheric chemistry and dynamics and oceanic processes. Neeley has also flown the Gulfstream G-II mission support aircraft, which explores environmentally friendly aircraft concepts, the Stratospheric Observatory for Infrared Astronomy (SOFIA), which observes the solar system and beyond at mid- and far-infrared wavelengths, and the C-20A (G-III) science platform aircraft, which carries our Jet Propulsion Laboratory's synthetic aperture radar. 

Dean Neeley Fun Facts 

Dean’s call sign Gucci came from flying KC-10 “Gucci Boys” before being hired to fly U-2 aircraft. Some say he spends too much time/money on his hair, clothes, cars. 😂

He played drums in two rock bands in the 80s and 90s; Agent Orange and the Defoliants; The Mod Sky Gods.

He spent his years in the Air Force as a reconnaissance squadron commander, wing chief of safety, stealth fighter squadron director and bomber in multiple worldwide aerial combat campaigns.

Dean holds a Bachelor of Science in Aerospace Engineering and a Master of Aeronautical Science degree.

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Experience How Microgravity Affects the Human Body

Now is your chance to experience what it’s like to live and work on the International Space Station! The new NASA Science: Humans in Space app will let you explore the station while virtually experiencing what it does to your body.

Life in space is no float in the park. Astronauts contend with everything from motion sickness to face swelling to loss of bone density. That’s why many research investigations on the space station study how humans can better adapt to microgravity both in Earth's orbit as well as on longer missions to the Moon and Mars. 

Deal with these challenges and perform crucial daily workouts as you explore the orbiting laboratory and ensure the H-II Transfer Vehicle successfully berths to the station. 

You can even collect mission patches along the way for completing tasks, counteracting the effects of microgravity and making discoveries. 

Download the application for Android here and iPhone here. Find more NASA apps here.

Want to learn about more investigations heading to the space station (or even ones currently under way)? Make sure to follow @ISS_Research on Twitter and Space Station Research and Technology News on Facebook.

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Want to Send Your Art to the International Space Station?!

For children ages 4-12, we’re hosting an art contest! Get the details:

We are working with Boeing and SpaceX to build human spaceflight systems, like rockets and spacecraft, to take astronauts to the International Space Station. These companies will fly astronauts to orbit around Earth while we focus on plans to explore deeper into our solar system. 

Get out your art supplies and use your creative imagination to show us the present and future of traveling in space!

There are no grocery stores in space, but there may soon be farms. Very small farms that are important to a crew conducting a mission to deep space. That’s because our astronauts will need to grow some of their own food. Researchers on Earth and astronauts on the International Space Station are already showing what is needed to grow robust plants in orbit.

What would you take to space? Astronaut Suni Williams took a cutout of her dog, Gorbie, on her first mission to the International Space Station. 

Kids 4 to 12, draw what you would take and enter it in our Children’s Artwork Calendar contest! Your entry could be beamed to the space station!

Go to http://go.nasa.gov/2fvRLNf for more information about the competition’s themes, rules and deadlines plus the entry form. 

Get your parent's permission, of course!

Email your entry form and drawing to us at: ksc-connect2ccp@mail.nasa.gov

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Launch Your Creativity with Space Crafts!

In honor of the completion of our Nancy Grace Roman Space Telescope’s spacecraft — the vehicle that will maneuver the observatory to its place in space and enable it to function once there — we’re bringing you a space craft you can complete at home! Join us for a journey across the cosmos, starting right in your own pantry.

Stardust Slime

Ingredients:

1 5 oz. bottle clear glue

½ tablespoon baking soda

Food coloring

1 tablespoon contact lens solution

1 tablespoon glitter

Directions:

Pour the glue into a bowl.

Mix in the baking soda.

Add food coloring (we recommend blue, purple, black, or a combination).

Add contact lens solution and use your hands to work it through the slime. It will initially be very sticky! You can add a little extra contact lens solution to make it firmer and less goopy.

Add glitter a teaspoon at a time, using as much or as little as you like!

Did you know that most of your household ingredients are made of stardust? And so are you! Nearly every naturally occurring element was forged by living or dying stars.

Take the baking soda in this slime recipe, for example. It’s made up of sodium, hydrogen, carbon, and oxygen. The hydrogen was made during the big bang, right at the start of the universe. But the other three elements were created by dying stars. So when you show your friends your space-y slime, you can tell them it’s literally made of stardust!

Still feeling crafty? Try your hand at more pantry projects or these 3D and paper spacecraft models. If you’re eager for a more advanced space craft, check out these embroidery creations for inspiration! Or if you’re ready for a break, take a virtual tour of an interactive version of the Roman Space Telescope here.

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Under Pressure

Structural Tests Underway for Top of World's Most Powerful Rocket

Testing is underway at NASA’s Marshall Space Flight Center in Huntsville, Alabama, on the agency’s new Space Launch System, the world’s most powerful rocket. SLS and NASA’s Orion spacecraft will enable deep-space missions, beginning a new era of exploration beyond Earth’s orbit.

Engineers at Marshall have stacked four qualification articles of the upper part of SLS into a 65-foot-tall test stand using more than 3,000 bolts to hold the hardware together. Tests are currently underway to ensure the rocket hardware can withstand the pressures of launch and flight. 

The integrated tests consists of:

1. Launch Vehicle Adapter

2. Frangible Joint Assembly

3. Interim Cryogenic Propulsion Stage

4. Orion Stage Adapter

Engineers are using 28 load pistons to push, pull and twist the rocket hardware, subjecting it to loads up to 40 percent greater than that expected during flight. More than 100 miles of cables are transmitting measurements across 1,900 data channels.

The Launch Vehicle Stage Adapter, LVSA, connects the SLS core stage and the Interim Cryogenic Propulsion Stage, ICPS. The LVSA test hardware is 26.5 feet tall, with a bottom diameter of 27.5 feet and a top diameter of 16.8 feet. The frangible joint, located between the LVSA and ICPS, is used to separate the two pieces of hardware during flight, allowing the ICPS to provide the thrust to send Orion onto its mission.

The ICPS is a liquid oxygen/liquid hydrogen-based system that will give Orion the big, in-space push needed to fly beyond the moon before it returns to Earth on the first flight of SLS in 2018. For this test series, the fuel tanks are filled with nonflammable liquid nitrogen and pressurized with gaseous nitrogen to simulate flight conditions. The nitrogen is chilled to the same temperature as the oxygen and hydrogen under launch conditions.

The Orion Stage Adapter connects the Orion spacecraft to the ICPS. It is 4.8 feet tall, with a 16.8-foot bottom diameter and 18-foot top diameter.

The first integrated flight for SLS and Orion will allow NASA to use the lunar vicinity as a proving ground to test systems farther from Earth, and demonstrate Orion can get to a stable orbit in the area of space near the moon in order to support sending humans to deep space, including the Journey to Mars. 

For more information about the powerful SLS rocket, check out: http://nasa.gov/SLS. 

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NASA and Star Trek

Star Trek debuted in September 1966 and in its various incarnations, the series has been an inspiration to many, even some of us at NASA. The series allowed its fans to explore “strange new worlds” and to dream of what could be right in their living rooms. To celebrate the show’s 50th anniversary, we’ve collected some Trek-themed photos featuring Star Trek cast members and NASA astronauts. 

Serious Business

The STS-54 crew of the space shuttle Endeavour in their official "gag" photo are costumed as the bridge crew of the Enterprise as depicted in the movie "Star Trek II: The Wrath of Khan.” The photo was taken on the Star Trek Adventure set of the Universal Studios California theme park in Los Angeles, California, while the crew was on a west coast training and public relations tour during the Summer of 1992. From left to right: 

Greg Harbaugh (Mission Specialist/Engineering Officer)

Mario "Spock" Runco Jr. (Mission Specialist/1st Officer/Science Officer) 

John Casper (Commander/Captain) 

Susan Helms (Mission Specialist/Communications Officer) 

Don McMonagle (Pilot/Navigation-Helm Officer) 

“I have been, and always shall be, your friend”

Astronaut John Creighton shows the on board Graphical Retrieval Information Display (GRID) computer, which displays a likeness of Mr. Spock aboard STS-051G, June 18, 1985.

“A Keyboard. . . How Quaint”

Actor James Doohan (who played engineering genius Montgomery Scott in Star Trek) sits in the commanders seat of the Full Fuselage Trainer while astronaut Mario Runco explains the control panel during a tour of Johnson Space Center on Jan. 18, 1991. 

“You Wanted Excitement, How's Your Adrenaline?”

Actress Nichelle Nichols (Uhura in Star Trek) toured Johnson Space Center in Houston on March 4, 1977, while Apollo 12 lunar module pilot and Skylab II commander Alan Bean showed her what it felt like inside the Lower Body Negative Pressure Device and showed her how the Shuttle Procedures Simulator operated. 

Nichols paid us another visit in 2012 and 2015 with the Space Traveling Museum. 

Infinite Diversity, Infinite Combinations

European Space Agency astronaut Samantha Cristoforetti gave the Vulcan salute aboard the International Space Station shortly after the passing of Leonard Nimoy on Feb. 28, 2015. She commented on Tweeter: " ‘Of all the souls I have encountered.. his was the most human.’ Thx @TheRealNimoy for bringing Spock to life for us"

Live Long And Prosper

While visiting Johnson Space Center in Houston, TX, George Takei (Hikaru Sulu on the original series) had the chance to exchange Vulcan salutes with Robonaut on May 29, 2012. 

“Let’s See What’s Out There”

Scott Bakula, who played Captain Jonathan Archer on Star Trek: Enterprise, stands with astronauts Terry Virts and Mike Fincke on set. The two astronauts made guest appearances on the series finale episode “These Are The Voyages . . .” March 2005.

Boldly Going For Real

Above is the crew of STS-134, the next to last shuttle mission, in their version of the 2009 Star Trek movie poster. 

The crew of Expedition 21 aboard the International Space Station also made a Trek-themed poster in 2009, wearing uniforms from Star Trek: The Next Generation with the Enterprise NX-01 silhouette in the background.

Learn more about Star Trek and NASA.

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