Vibration Test At 80% Power Of The European Structural Test Article Conducted At NASA Glenn’s Space

Nebula Images: http://nebulaimages.com/

Astronomy articles: http://astronomyisawesome.com/

SAGE III Science Data Validation Efforts Begin

From its perch on the International Space Station, SAGE III is measuring stratospheric ozone as well as other gases and aerosols.

An orbiting science instrument whose legacy dates back 34 years continues to beam back data on Earth’s protective ozone layer – this time, from a perch on the hull of the International Space Station.

The Stratospheric Aerosol and Gas Experiment III (SAGE III), a NASA Langley Research Center-led mission, was launched on Feb. 19, 2017 and installed on the International Space Station during a 10-day robotic operation.

Since March 2017, the instrument has been measuring and collecting data on Earth’s sunscreen, stratospheric ozone, as well as other gases and aerosols, which are tiny particles in the atmosphere at all altitudes.

The SAGE III instrument makes these measurements through occultation, which involves looking at the light from the Sun or the Moon as it passes through Earth’s atmosphere at the edge, or limb, of the planet. The initial set of atmospheric data collected from the SAGE III instrument was released publicly in October 2017, and the first lunar data was released in January 2018.

Because the SAGE III instrument makes measurements through remote sensing - collecting data from some distance away - the science validation team cannot be sure if the data they are receiving is accurate without first validating it.

To do that, SAGE III science data must be compared to in-situ measurements, or measurements made by other instruments or systems that come in direct contact with the ozone, aerosol, or gas data being collected. These in-situ measurements are collected by the Network for Detection of Atmospheric Composition Change (NDACC), an international group, part of the National Oceanic and Atmospheric Administration, composed of research sites across the world collecting data on the Earth’s atmosphere.

“These sites have been vetted, validated, and have a long statistical history of making science measurements with their instruments,” said SAGE III Science Manager Marilee Roell.

The NDACC will collect these validated measurements through various methods, with two primary methods being through lidar - light detection and ranging - and sondes. Lidar is a ground-based measurement technique that uses a laser to shoot a beam into the Earth’s atmosphere, causing light to scatter by the atmospheric gases and particles. Being able to detect the distance to these gases and particles, the lidar can gather data on the Earth’s atmospheric composition.

Sondes are lightweight, balloon-borne instruments that are flown thousands of feet into the Earth’s atmosphere. As the instrument ascends, it transmits measurements of particle and gas concentrations by radio to a ground-based receiving station. Sondes are used daily across the globe to capture meteorological data, allowing people to check weather conditions each morning.

The science validation team is using NDACC ozone and aerosol lidar data, as well as ozone and water vapor sonde measurements, to validate science data collected from SAGE III.

“We want to match our vertical science product to an externally validated source. It helps the science community have confidence in our data set,” said Roell.

The team is working towards having an externally validated aerosol sonde to compare to the collected SAGE III data. This effort is in the preliminary stages of validating the aerosol balloon sonde against a suite of aerosol sounders, including lidar.

The team is working to validate science data with NDACC locations in Boulder, Colorado and Lauder, New Zealand, which fall within similar latitude bands in the northern and southern hemispheres. To be precise in validation efforts, the lidar or sonde measurement is taken at the same time and location that SAGE III is passing over and collecting equivalent data.

One of the most recent validation efforts took place in Table Mountain, California, and Haute Provence in France. Both locations include validated lidar systems, with lidar being operated by NASA’s Jet Propulsion Laboratory in Table Mountain, California.

Validation efforts were taken a step further by including a third source of measurements: NASA’s DC-8 aircraft. The aircraft, based out of NASA Armstrong Flight Research Center in Palmdale, California, operates as a flying science laboratory. It helps validate the accuracy of other remote-sensing satellite data, such as SAGE III, and can fly under the satellite’s path to collect the same measurements.

Validating the science data using this method required SAGE III, the NASA DC-8 aircraft, and the lidar system in California or France to be taking measurements at the same time and location. The science validation team worked to have all three systems line up while taking measurements and collected some coinciding science data.

NASA also created a validation website for other NDACC sites to use. The site displays SAGE III overpasses of NDACC sites that are three weeks out or less. These sites can choose to make lidar or sonde measurements at the same time as the instrument overpass, and compare them to SAGE III data collected to see if the two sets coincide. The validation team is pursuing additional NDACC sites to coordinate overpass timeframes when the sites may be taking lidar and sonde measurements.

The SAGE III team will present initial science validation data at the European Geosciences Union conference in Vienna, Austria this April.

SAGE III is the latest in a legacy of Langley instruments that go back to the Stratospheric Aerosol Measurement (SAM), which flew on the 1975 Apollo-Soyuz mission. SAGE II, operational from 1984 to 2005, measured global declines in stratospheric ozone that were later shown to be caused by human-induced increases in atmospheric chlorine. Data from it and other sources led to the development of the Montreal Protocol on Substances that Deplete the Ozone Layer.

After the passage of the protocol, SAGE II data also provided key evidence that the ozone layer was showing signs of recovery.

SAGE III, which launched to the station Feb. 19 from Kennedy Space Center in Florida, will continue to monitor that recovery, but with more of Earth’s atmosphere in its sights. SAGE II monitored only the stratosphere. SAGE III is monitoring both the stratosphere and the mesosphere, which is the layer directly above the stratosphere.

Ozone in the upper atmosphere acts as Earth’s sunscreen, protecting the surface from cancer-causing, crop-damaging ultraviolet rays. Atmospheric aerosols contribute to variability in the climate record.

Allison Leybold NASA Langley Research Center

NASA Invites Public to Send Artwork to an Asteroid

NASA is calling all space enthusiasts to send their artistic endeavors on a journey aboard NASA’s Origins, Spectral Interpretation, Resource Identification, Security-Regolith Explorer (OSIRIS-REx) spacecraft. This will be the first U.S. mission to collect a sample of an asteroid and return it to Earth for study.

OSIRIS-REx is scheduled to launch in September and travel to the asteroid Bennu. The #WeTheExplorers campaign invites the public to take part in this mission by expressing, through art, how the mission’s spirit of exploration is reflected in their own lives. Submitted works of art will be saved on a chip on the spacecraft. The spacecraft already carries a chip with more than 442,000 names submitted through the 2014 “Messages to Bennu” campaign.

“The development of the spacecraft and instruments has been a hugely creative process, where ultimately the canvas is the machined metal and composites preparing for launch in September,” said Jason Dworkin, OSIRIS-REx project scientist at NASA’s Goddard Space Flight Center in Greenbelt, Maryland. “It is fitting that this endeavor can inspire the public to express their creativity to be carried by OSIRIS-REx into space.”

A submission may take the form of a sketch, photograph, graphic, poem, song, short video or other creative or artistic expression that reflects what it means to be an explorer. Submissions will be accepted via Twitter and Instagram until March 20. For details on how to include your submission on the mission to Bennu, go to:

http://www.asteroidmission.org/WeTheExplorers

“Space exploration is an inherently creative activity,” said Dante Lauretta, principal investigator for OSIRIS-REx at the University of Arizona, Tucson. “We are inviting the world to join us on this great adventure by placing their art work on the OSIRIS-REx spacecraft, where it will stay in space for millennia.”

The spacecraft will voyage to the near-Earth asteroid Bennu to collect a sample of at least 60 grams (2.1 ounces) and return it to Earth for study. Scientists expect Bennu may hold clues to the origin of the solar system and the source of the water and organic molecules that may have made their way to Earth.

Goddard provides overall mission management, systems engineering and safety and mission assurance for OSIRIS-REx. The University of Arizona, Tucson leads the science team and observation planning and processing. Lockheed Martin Space Systems in Denver is building the spacecraft. OSIRIS-REx is the third mission in NASA's New Frontiers Program.  NASA's Marshall Space Flight Center in Huntsville, Alabama, manages New Frontiers for the agency's Science Mission Directorate in Washington.

For more information on OSIRIS-Rex, visit:

http://www.nasa.gov/osiris-rex

Orion was making waves at @nasalangley this week

NASA’s Transiting Exoplanet Survey Satellite (TESS) 

The Transiting Exoplanet Survey Satellite (TESS) is the next step in the search for planets outside of our solar system, including those that could support life. The mission will find exoplanets that periodically block part of the light from their host stars, events called transits. 

 TESS will survey 200,000 of the brightest stars near the sun to search for transiting exoplanets. The mission is scheduled to launch in 2018.  

The TESS launch date is NLT June 2018 (the current working launch date is April 2018).

Music: "Prototype" and "Trial" both from Killer Tracks. Credit: NASA’s Goddard Space Flight Center

NASA Goddard Space Flight Center

Museum Exhibit Reveals the NASA Langley Human Computers from "Hidden Figures"

Sam McDonald NASA Langley Research Center

A new display at the Hampton History Museum offers another view of African-American women whose mathematical skills helped the nation’s early space program soar.

“When the Computer Wore a Skirt: NASA’s Human Computers” opens to the public Saturday, Jan. 21, and focuses on three women — Dorothy Vaughan, Mary Jackson and Katherine Johnson — who were illuminated in Margot Lee Shetterly’s book “Hidden Figures” and the major motion picture of the same name. Located in the museum's 20th century gallery, it was created with support from the Hampton Convention and Visitor Bureau and assistance from NASA's Langley Research Center.

“Langley’s West Computers were helping America dominate aeronautics, space research, and computer technology, carving out a place for themselves as female mathematicians who were also black, black mathematicians who were also female,” Shetterly wrote.

The modestly sized exhibit is comprised of four panels with photos and text along with one display case containing artifacts, including a 1957 model Friden mechanical calculator. That piece of equipment represented state-of-the-art technology when then original human computers were crunching numbers. A three-minute video profiling Johnson —a Presidential Medal of Freedom winner — is also part of the exhibit.

A display case at left contains a 1957 Friden STW-10 mechanical calculator, the type used by NASA human computers including Katherine Johnson. "If you were doing complicated computations during that time, this is what you used," said Hampton History Museum Curator Allen Hoilman. The machine weighs 40 pounds.

Credits: NASA/David C. Bowman

Museum curator Allen Hoilman said his favorite artifact is a May 5, 1958 memo from Associate Director Floyd Thompson dissolving the West Area Computers Unit and reassigning its staff members to other jobs around the center.

“It meant that the segregated work environment was coming to an end,” Hoilman said. “That’s why this is a significant document. It’s one of the bookends.”

That document, along with several others, was loaned to the museum by Ann Vaughan Hammond, daughter of Dorothy Vaughan. Hoilman said family members of other human computers have been contacted about contributing artifacts as well.

Ann Vaughan Hammond worked hard to find meaningful items for the display. “She really had to do some digging through the family papers,” Hoilman said, explaining that the women who worked as human computers were typically humble about their contributions. They didn’t save many mementos.

“They never would have guessed they would be movie stars,” Hoilman said.

For more information on Katherine Johnson, click here.

Credits:

Sam McDonald NASA Langley Research Center

Retired Major General Finds Balance as NASA Engineer

In many ways, the military and NASA couldn’t be different. Frank Batts has managed to navigate both worlds with precision, grace and just a bit of humor. After serving as a major general in the Army National Guard, he made the transition to working on computers as an engineer at NASA’s Langley Research Center in Hampton, Virginia.

“They’re opposites, but that keeps me balanced,” Batts said. “In the Army, you’re out there blowing things up in the field. Here, you’re trying to build electronic computer components.”

Batts is a senior data-systems engineer with the Advanced Measurement and Data Systems Branch at NASA’s Langley Research Center in Hampton, Virginia. He has been at Langley for 34 years and has seen the tools of the job change.

“Technology has changed tremendously,” said the 63-year-old Batts. “When we started out in the eighties, we were all using proprietary operating systems on real-time computers that were not widely used or understood. Now we’re pretty much using PCs for our work.”

In addition to his NASA career, Batts served his country with distinction in the armed forces – and made history along the way. He retired from the Army National Guard in 2012 as a major general and commander of the 29th Infantry Division in Fort Belvoir, Virginia - the first African-American to hold that post. He also served in the West Virginia and Tennessee national guards.

The adventure begins

Batts’ journey started in 1976, when he was accepted at North Carolina Agricultural and Technical State University in Greensboro and joined the Army Reserve Officer Training Corps (ROTC) there.

While at the university, Batts entered a cooperative program with the Union Carbide Corp., working in a gaseous diffusion plant in the nuclear division. After graduating from North Carolina A&T, Batts worked fulltime as an electrical engineer with Union Carbide, and as an engineering officer in the West Virginia National Guard.

“Initially when you get out of college, you’re competing with engineers from other schools,” Batts said. “I found out pretty soon that regardless of what school you came from, it got down to who can really deliver projects on time and on budget.”

Batts was pursuing a master’s degree in electronics engineering at North Carolina A&T around the time IBM introduced personal computers. He was told PCs were a fad and not worth investing in, but he glimpsed the future and got on board.

“It looked like to me it was the way to go,” he said.

But then in 1979, the Three Mile Island nuclear power plant in Pennsylvania experienced a partial core meltdown, releasing radioactive gas into the atmosphere.

The incident changed his professional trajectory, as the Union Carbide-run K-25 facility in Oak Ridge, Tennessee, where Batts was working, enriched uranium for nuclear power plants.

“Prior to Three Mile Island there were plans to construct nuclear plants all over the country, and K-25’s future was secure,” Batts said. “After Three Mile Island, all of those plans were dropped; we had more enriched uranium than was needed and K-25 was slated for closure.”

That meant he needed another job. While looking to move on, Batts found that NASA Langley was using a computing system similar to the one he used while he was with Union Carbide. He sets his sights on Langley, and has been on center as an electronic engineer since 1984 .

Two worlds in one

Batts’ military and NASA worlds were peacefully cohabitating until the Sept. 11, 2001, terrorist attacks. Batts was soon activated and from May 2004 through April 2005, served with the 54th Field Artillery Brigade Headquarters as the mobile liaison team chief in Kabul, Afghanistan as part of Operation Enduring Freedom.

“With the Army comes the leadership responsibilities. I managed a few thousand troops, and that’s no fun. I make an effort in my career at NASA to stay on the technical side rather than on the administrative side of things,” he said with a laugh.

What is fun for Batts, besides getting in more rounds at the golf course in his spare time, is serving as an example for engineering students though NASA’s outreach programs.

Batts, as the first engineer in his family, said he realizes the importance of recognizing those who blazed the trail for others.

“I have to pay homage to the people who came before me,” he said. “Before I was able to command a battalion, there was some else who commanded one, and did a credible enough job so that I had an opportunity.”

Batts also enjoys the reaction of people when they learn he works for NASA.

“There’s a lot of prestige that goes with working at NASA,” he said. “When people find out you work at NASA, they seem to look at you a bit differently.”

Eric Gillard NASA Langley Research Center

Tiny NASA Cameras to Watch Commercial Lander form Craters on Moon

Footage from vibration and thermal vacuum testing of the SCALPSS cameras and data storage unit.

Credits: NASA/Gary Banziger

This little black camera looks like something out of a spy movie — the kind of device one might use to snap discrete photos of confidential documents.

It's about half the size of a computer mouse.

The SCALPSS cameras, one of which is pictured here prior to thermal vacuum testing, are about the size of a computer mouse. Credits: NASA

But the only spying this camera — four of them, actually — will do is for NASA researchers wondering what happens under a spacecraft as it lands on the Moon.

It's a tiny technology with a big name — Stereo Camera for Lunar Plume-Surface Studies, or SCALPSS for short — and it will journey to the Moon in 2021 as a payload aboard an Intuitive Machines Nova-C lunar lander spacecraft. Intuitive Machines is one of two U.S. companies delivering technology and science experiments to the lunar surface later this year as part of NASA's Commercial Lunar Payload Services (CLPS) initiative. SCALPSS will provide important data about the crater formed by the rocket plume of the lander as it makes its final descent and landing on the Moon's surface.

As part of the Artemis program, NASA will send robots and humans to study more of the Moon than ever before. The agency plans to establish sustainable lunar exploration by the end of the decade, and has outlined its Artemis Base Camp concept for the lunar South Pole. Landers may deliver multiple payloads very near one another. Data such as that from SCALPSS will prove aid in computer models that inform subsequent landings.

SCALPSS team members prepare the cameras and data storage unit for vibration testing. Credits: NASA/David C. Bowman

"As we send bigger, heavier payloads and we try to land things in close proximity to each other, first at the Moon then at Mars, this ability to predict landing impacts is very important," said Michelle Munk, principal investigator for SCALPSS at NASA's Langley Research Center in Hampton, Virginia.

The four SCALPSS cameras, which will be placed around the base of the commercial lander, will begin monitoring crater formation from the precise moment a lander's hot engine plume begins to interact with the Moon's surface.

"If you don't see the crater when it starts to form, you can't really model it," said Munk. "You've got to have the start point and the end point and then you can figure out what happened, in between."

The cameras will continue capturing images until after the landing is complete. Those final stereo images, which will be stored on a small onboard data storage unit before being sent to the lander for downlink back to Earth, will allow researchers to reconstruct the crater's ultimate shape and volume.

The SCALPSS data storage unit will store the imagery the cameras collect as the Intuitive Machines Nova-C lunar lander spacecraft makes its final descent and lands on the Moon's surface. Credits: NASA

Testing to characterize the SCALPSS camera and lens took place last year at NASA's Marshall Space Flight Center in Huntsville, Alabama. Researchers conducted radial distortion, field-of-view and depth-of-focus tests among others. They also ran analytical models to better characterize how the cameras will perform. Development of the actual SCALPSS payload took place at Langley. And over the summer, researchers were able to enter the lab to assemble the payload and conduct thermal vacuum and vibration tests.

That lab access involves special approval from officials at Langley, which is currently only giving access to essential employees and high-priority projects to keep employees safe during the ongoing COVID-19 pandemic. SCALPSS was one of the first projects to return to the center. Before they could do that, facilities had to pass safety and hazard assessments. And while on center, the team had to follow strict COVID-19 safety measures, such as wearing masks and limiting the number of people who could be in a room at one time. The center also provided ample access to personal protective equipment and hand sanitizer.

The SCALPSS hardware was completed in late October and will be delivered to Intuitive Machines in February.

"Development and testing for the project moved at a pretty brisk pace with very limited funds," said Robert Maddock, SCALPSS project manager. "This was likely one of the most challenging projects anyone on the team has ever worked on."

But Munk, Maddock and the entire project team have embraced these challenges because they know the images these little cameras collect may have big ripple effects as NASA prepares for a human return to the Moon as part of the Artemis program.

"To be able to get flight data and update models and influence other designs — it's really motivating and rewarding," said Munk.

Hot off the heels of this project, the SCALPSS team has already begun development of a second payload called SCALPSS 1.1. It will be flown by another CLPS commercial lander provider to a non-polar region of the Moon in 2023 and collect data similar to its predecessor. It will also carry two additional cameras to get higher resolution stereo images of the landing area before engine plume interactions begin, which is critical for the analytic models in establishing the initial conditions for the interactions.

NASA’s Artemis program includes sending a suite of new science instruments and technology demonstrations to study the Moon, landing the first woman and next man on the lunar surface in 2024, and establishing a sustained presence by the end of the decade. The agency will leverage its Artemis experience and technologies to prepare for humanity’s the next giant leap – sending astronauts to Mars as early as the 2030s.

Joe Atkinson NASA Langley Research Center

See Mercury Race Across The Sun On Monday

Skywatchers in the western hemisphere will see a rare sight on Monday: over the course of several hours, the silhouette of the planet Mercury will appear to cross the face of the Sun. The “transit” of Mercury results from the precise alignment of the orbits of Mercury and Earth that only happens either 13 or 14 times per century; usually the orbital alignment is weak, and as seen from our planet Mercury “misses” the Sun’s disk as it orbits once every 88 days. But on Monday, the view through a properly-shielded telescope will reveal the innermost planet as a dark, perfectly circular spot that moves completely across the Sun in exactly seven and a half hours.

Because of the specifics of our respective orbits, Mercury transits only happen in either the months of May or November, with average dates of 8th May and 10th November. May transits happen less frequently than November transits because during May, Mercury is closer to its largest distance from the Sun, while in November the opposite is true. As a result, the range of possible angles between the Sun and Mercury, as seen from Earth, is smaller in November than May. While the interval between successive November transits can be either 7, 13 or 33 years, May transits are less common, with successive appearances in either 13- or 33-year intervals.

Observations of Mercury transits reach back to at least the seventeenth century. Observations from earlier than this are unlikely because the apparent size of Mercury’s silhouette against the Sun is too small for the unaided eye to resolve. This is why the first recorded Mercury transit — by the French astronomer Pierre Gassendi on 7 November 1631 — dates to after Galileo Galilei’s invention of the telescope in about 1609. Johannes Kepler earlier understood that Mercury’s orbit should periodically take it in front of the Sun, but he died in 1630 before being able to observe a predicted transit. 

While these events once had great scientific interest, they are now mainly curiosities that delight astronomy aficionados. Rarer still are transits of Venus across the Sun, the last of which took place in 2012. These events come in pairs separated by 113 years, meaning that most people alive now will not be around to see the next one in December 2117.

Who can see Monday’s event? That depends on the hour of day and which side of the Earth faces the Sun at the time. The map below indicates which parts of the world see either all, some, or none of the transit: 

You’ll need at least a good pair of binoculars or a telescope — properly shielded with a heavy filer to prevent eye damage — to even sense Mercury during the transit. It will look like a small, perfectly round and completely opaque black dot against the bright solar photosphere. Mercury is distinguishable in this sense from sunspots, which are irregular in shape, can be partially transparent, and of much larger sizes. This image compares Mercury during a transit (bottom-center) with a sunspot near the solar limb (upper right).

NOTE: DO NOT LOOK AT THE SUN THROUGH A TELESCOPE WITHOUT A FULL-APERTURE SOLAR FILTER! Doing so can cause permanent blindness! Instead, try projecting the image of the sun from a telescope or binoculars onto white paper. This method avoids bringing dangerous, strongly-focused sunlight anywhere near one’s eyes. 

Better still: Watch the transit live online! Find live streaming coverage from Slooh, NASA TV, Celestron telescopes, Sky and Telescope magazine, and  the Virtual Telescope.

(Top image credit: Sky & Telescope magazine; map and transit image: Fred Espenak)

Nine Notable Facts About the NACA

The National Advisory Committee for Aeronautics (NACA) reached a major milestone in 2015.

On March 3, the agency that in 1958 would dissolve and reform as NASA celebrated its centennial.

NASA Langley, established in 1917 as the Langley Memorial Aeronautical Laboratory, was the NACA's first field center.

During the March 24 talk, Tom Crouch, senior curator of aeronautics; John Anderson, curator of aerodynamics; and Roger Launius, associate director for collections and curatorial affairs discussed the formation of the NACA, the technological breakthroughs it generated, and the evolution of its research and development model.

Here are nine of the more interesting things they shared:

1. Charles Doolittle Walcott, a self-trained scientist and the man whose efforts led to the formation of the NACA, was best known not as an aeronautics expert, but as a paleontologist. "Throughout his long career," Crouch said, "he was really one of the most effective spokesmen for science and technology in the federal government."

2. Walcott was a good friend of aviation pioneer and Wright brothers rival Samuel Pierpont Langley, who was devastated in 1903 when his Aerodrome flying machine twice failed to take flight over the Potomoc River. Langley died in 1906. "One of Charles Doolittle Walcott's aims in life was to resurrect and honor the memory of his old friend Samuel Pierpont Langley," Crouch said — so much so that he once suggested naming all airplanes Langleys. Eventually, Walcott named the Langley Memorial Aeronautical Laboratory after his friend.

3. Prior to World War I, aeronautics was not a high priority for the U.S. government. On a list of the aeronautics appropriations for 14 countries in the period from 1908 to 1913, the United States was dead last with $435,000. That put the U.S. behind Brazil, Chile, Bulgaria, Spain and Greece. Topping the list: Germany, with $28 million.

4. In the late 1920s, Fred Weick, a Langley engineer, developed what became known as the NACA cowling, a type of fairing or cover used to reduce drag on aircraft engines. The cowling also improved engine cooling. In 1929, Weick won the Collier Trophy, U.S. aviation's more prestigious award, for this innovation.

5. By the 1930s, the world had entered a golden era of aeronautics — largely due to the NACA. "The NACA was aeronautical engineering," said Anderson. And some of the most important aeronautical innovations were taking place right here at Langley Research Center. It was during the 1930s that Langley aerodynamicist Eastman Jacobs developed a systematic way of designing an airfoil. That systematic design became known as the NACA airfoil, and aircraft makers worldwide began using it.

In 1934, during a high-speed wind tunnel test at Langley, a researcher named John Stack captured the first ever photograph of a shockwave on an airfoil. Credits: NASA

6. Aeronautics researchers in the 1930s were struggling to determine the cause of a peculiar phenomenon — as an object approached the speed of sound, drag greatly increased and lift drastically reduced. In 1934, a young Langley researcher named John Stack figured out why by photographing a high-speed wind tunnel test of an airfoil. The photo captured the culprit — a shockwave. It was the first time a shockwave had ever been photographed on an airfoil. "This was a dramatic intellectual contribution of the NACA that a lot of people don't really appreciate," said Anderson.

7. The woman who developed the format and style guide for the NACA's technical reports was a physicist from North Dakota named Pearl Young. She came to Langley in 1922, the first professional woman employed at the center, and was appointed Langley's first Chief Technical Editor in 1929. "The technical memorandums … became the model worldwide for how to increase knowledge and make it available to the broadest base of people that can use it," said Launius.

8. The NACA used to host an annual Aircraft Engineering Research Conference at Langley. The conferences were "a who's who of anybody involved in aeronautics in the United States," said Launius. "This interchange of information, of ideas, of concerns, becomes the critical component to fueling the research processes that led to some of the great breakthroughs of the early period before World War II." Among the notable attendees at the 1934 conference were Orville Wright, Charles Lindbergh and Howard Hughes.

A photo taken in Langley's Full Scale Tunnel during the 1934 Aircraft Engineering Research Conference at Langley. Orville Wright, Charles Lindbergh and Howard Hughes were in attendance. Credits: NASA

9. Following World War II, according to Launius, the NACA began to change its "model ever so slightly," making its first forays into public-private partnerships. Perhaps the earliest example of these partnerships was the Bell X-1, a joint project between the NACA, the U.S. Air Force and Bell Aircraft Company. The Bell X-1 became the first manned aircraft to break the sound barrier.