NASA
The National Aeronautics and Space Administration is an independent agency of the U.S. federal government responsible for the civilian space program, as well as aeronautics and space research.
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11 min read The Universe is Expanding Faster These Days and Dark Energy is Responsible. So What is Dark Energy? Some 13.8 billion years ago, the universe began with a rapid expansion we call the big bang. After this initial expansion, which lasted a fraction of a second, gravity started to slow the universe down. But the cosmos wouldn’t stay this way. Nine billion years after the universe began, its expansion started to speed up, driven by an unknown force that scientists have named dark energy. But what exactly is dark energy? The short answer is: We don’t know. But we do know that it exists, it’s making the universe expand at an accelerating rate, and approximatel…
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3 min read What’s Made in a Thunderstorm and Faster Than Lightning? Gamma Rays! A flash of lightning. A roll of thunder. These are normal stormy sights and sounds. But sometimes, up above the clouds, stranger things happen. Our Fermi Gamma-ray Space Telescope has spotted bursts of gamma rays – some of the highest-energy forms of light in the universe – coming from thunderstorms. Gamma rays are usually found coming from objects with crazy extreme physics like neutron stars and black holes. So why is Fermi seeing them come from thunderstorms? About a thousand times a day, thunderstorms fire off fleeting bursts of some of the highest-energy light naturally found on …
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4 min read When Dead Stars Collide! Gravity has been making waves — literally. In October 2017, the Nobel Prize in Physics was awarded for the first direct detection of gravitational waves two years earlier. Also in that month, astronomers announced a huge advance in the field of gravitational waves: For the first time, they had observed light and gravitational waves from the same source. Let’s look at what happened. Two neutron stars are on the verge of colliding in this illustration. NASA’s Goddard Space Flight Center There was a pair of orbiting neutron stars in a galaxy (called NGC 4993). Neutron stars are the crushed leftover cores of massive stars (star…
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Official portrait of Joseph Pelfrey, director, NASA’s Marshall Space Flight Center in Huntsville, Alabama.NASA NASA Administrator Bill Nelson on Monday named Joseph Pelfrey director of the agency’s Marshall Space Flight Center in Huntsville, Alabama, effective immediately. Pelfrey has served as acting center director since July 2023. “Joseph is a respected leader who shares the passion for innovation and exploration at NASA Marshall. As center director, he will lead the entire Marshall workforce, which includes a world-renowned team of scientists, engineers, and technologists who have a hand in nearly every NASA mission,” said Nelson. “I am confident that under Jose…
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The 2024 National Science Bowl regional competition hosted by JPL included 21 schools, with this team from Irvine’s University High School taking first place. From left, coach David Knight, Feodor Yevtushenko, Yufei Chen, Nathan Ouyang, Wendy Cao, and Julianne Wu.NASA/JPL-Caltech After months of preparation, more than 100 students competed at the fast-paced annual academic competition hosted by NASA’s Jet Propulsion Laboratory. For the second year in a row, a team from Irvine’s University High School claimed victory at a regional competition of the National Science Bowl, hosted Saturday, Feb. 3, by NASA’s Jet Propulsion Laboratory in Southern California. More th…
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5 Min Read NASA’s Laser Navigation Tech Enables Commercial Lunar Exploration Navigation Doppler Lidar is a guidance system that uses laser pulses to precisely measure velocity and distance. NASA will demonstrate NDL’s capabilities in the lunar environment during the IM-1 mission. Credits: NASA / David C. Bowman Later this month, NASA’s commercial lunar delivery services provider Intuitive Machines will launch its Nova-C lunar lander carrying several NASA science and technology payloads, including the Navigation Doppler …
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Prelaunch News Conference for NASA Mission Studying Earth's Atmosphere and Oceans (Feb. 5, 2024)
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Science Briefing on NASA Mission Studying Earth's Atmosphere and Oceans (Feb. 4, 2024)
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A Commercial Resupply Mission to the Space Station on This Week @NASA – February 2, 2024
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4 Min Read The Iconic Photos from STS-41B: Documenting the First Untethered Spacewalk Astronaut Bruce McCandless II, STS-41B mission specialist, reaches his maximum distance from space shuttle Challenger before returning to the spacecraft using the Manned Maneuvering Unit (MMU). Credits: NASA As astronaut Bruce McCandless II flew the Manned Maneuvering Unit (MMU) out of the space shuttle Challenger’s payload bay for the first time on February 7, 1984, many in the agency were fearful about the use of a self-propelled and …
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Launch of Mission to Study Earth's Atmosphere and Oceans (Official NASA Broadcast)
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3 min read Meet the Creators, Part 3: NASA’s 2024 Total Solar Eclipse Posters A total solar eclipse is a captivating experience – evoking feelings of awe and wonder that are sometimes best expressed through art. Inspired by the upcoming total solar eclipse of April 8, 2024, artists Tyler Nordgren and Kristen Perrin have designed two posters for NASA that present the magic of the eclipse in unique ways. Tyler Nordgren Download the poster here. NASA/Tyler Nordgren In “The Sun and Moon Align with You” poster for NASA, Nordgren – who is a professional astronomer as well as an artist – said that his goal was to capture the experience that can be had by millions of…
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NASA astronauts and Expedition 70 Flight Engineers Jasmin Moghbeli, left, and Loral O’Hara in the Destiny laboratory celebrate the successful docking of a SpaceX Dragon cargo spacecraft to the International Space Station. NASA Students from California and Massachusetts will have separate opportunities next week to hear from NASA astronauts aboard the International Space Station. The two Earth-to-space calls will air live Monday, Feb. 5, and Friday, Feb. 9, on NASA+ and agency’s website. Learn how to stream NASA TV through a variety of platforms including social media. At 12:15 p.m. EST Feb. 5, NASA astronauts Loral O’Hara and Jasmin Moghbeli will answer prerecor…
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The SpaceX Dragon Freedom spacecraft carrying the four-member Axiom Mission 3 (Ax-3) crew is pictured approaching the International Space Station 260 miles above China north of the Himalayas. NASA will provide live coverage of the undocking and departure of the Axiom Mission 3 (Ax-3) private astronaut flight from the International Space Station before the crew returns to Earth. The four-member astronaut crew is scheduled to undock no earlier than 6:05 a.m. EST Saturday, Feb. 3, from the space-facing port of the station’s Harmony module in a SpaceX Dragon spacecraft to begin the journey home and splashdown off the coast of Florida. NASA will provide live covera…
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NASA and SpaceX technicians safely encapsulate NASA’s PACE (Plankton, Aerosol, Cloud, ocean Ecosystem) spacecraft in SpaceX’s Falcon 9 payload fairings on Tuesday, Jan. 30, 2024, at the Astrotech Space Operations Facility near the agency’s Kennedy Space Center in Florida.Photo Credit: NASA Goddard/Denny Henry NASA is hosting virtual activities ahead of the launch of the PACE (Plankton, Aerosol, Cloud, ocean Ecosystem) mission and invites you to share in the fun. The PACE mission will help us better understand how the ocean and atmosphere exchange carbon dioxide, measure key atmospheric variables associated with air quality and Earth’s climate, and monitor ocean health, …
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2 min read UNITE All-Nighter Delights Amateur Astronomers Fadi Saibi and his daughter Sophie, age 14, pose for a photograph with their Unistellar telescope in their backyard in Sunnyvale, Calif., on Thursday, Jan. 11, 2024. Credit: Bay Area News Group/Nhat V. Meye Maybe you read about them in the papers–amateur astronomers in Japan, Russia, France, Finland, and the United States have been pulling all-nighters to spot extraordinary exoplanets, planets orbiting stars other than the Sun. NASA’s UNITE project holds these planetary stakeouts several times every month, and you can join in! This October, the UNITE team undertook a 20-hour marathon as part of tracki…
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On Feb. 3, 1994, space shuttle Discovery took off on its 18th flight, STS-60. Its six-person crew of Commander Charles F. Bolden, Pilot Kenneth S. Reightler, and Mission Specialists N. Jan Davis, Ronald M. Sega, Franklin R. Chang-Díaz, who served as payload commander, and Sergei K. Krikalev of the Russian Space Agency, now Roscosmos, flew the first mission of the Shuttle-Mir Program. Other objectives of the mission included the first flight of the Wake Shield Facility, a free-flying satellite using the ultra-vacuum of space to generate semi-conductor films for advanced electronics and the second flight of a Spacehab commercially developed pressurized module to enable mult…
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This new NASA Hubble Space Telescope image shows ESO 185-IG013, a luminous blue compact galaxy (BCG). BCGs are nearby galaxies that show an intense burst of star formation. They are unusually blue in visible light, which sets them apart from other high-starburst galaxies that emit more infrared light. Astrophysicists study BCGs because they provide a relatively close-by equivalent for galaxies from the early universe. This means that BCGs can help scientists learn about galaxy formation and evolution that may have been happening billions of years ago. Hubble imaged ESO 185-IG013 in ultraviolet, visible, and infrared wavelengths to reveal details about its past. Hundre…
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4 min read Preparations for Next Moonwalk Simulations Underway (and Underwater) Say cheese, Moon. We’re coming in for a close-up. As Intuitive Machines’ Nova-C lander descends toward the Moon, four tiny NASA cameras will be trained on the lunar surface, collecting imagery of how the surface changes from interactions with the spacecraft’s engine plume. The Stereo Cameras for Lunar Plume-Surface Studies will help us to land larger payloads as we explore space. Olivia Tyrrell from the SCALPPS photogrammetry team explains how a small array of cameras will capture invaluable imagery during lunar descent and landing, and how that imagery can inform our future missio…
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2 min read Hubble Views a Dim but Distinct Galaxy Both visible and ultraviolet wavelengths of light comprise this Hubble Space Telescope image of the spiral galaxy UGC 11105. ESA/Hubble & NASA, R. J. Foley (UC Santa Cruz) This image of the softly luminous spiral galaxy UGC 11105 is from the NASA/ESA Hubble Space Telescope. It lies about 110 million light-years from Earth in the constellation Hercules. Astronomers have different ways of quantifying how bright celestial objects are. Apparent magnitude is one of those methods. It describes how bright an object appears to an observer on Earth, which is not the same thing as measuring how bright an object actua…
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2 min read Hubble Sees a Merged Galaxy This new NASA Hubble Space Telescope image reveals the luminous blue compact galaxy called ESO 185-IG013. NASA, ESA, and R. Chandar (University of Toledo); Processing: Gladys Kober (NASA/Catholic University of America) This new NASA Hubble Space Telescope image shows ESO 185-IG013, a luminous blue compact galaxy (BCG). BCGs are nearby galaxies that show an intense burst of star formation. They are unusually blue in visible light, which sets them apart from other high-starburst galaxies that emit more infrared light. Astrophysicists study BCGs because they provide a relatively close-by equivalent for galaxies from the early…
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NASA/Danny Nowlin Clouds of white vapor pile up at NASA’s Stennis Space Center in Bay St. Louis, Mississippi during a full-duration, 500-second hot fire of an RS-25 certification engine Jan. 17, 2024. This test series is critical for future flights of NASA’s SLS (Space Launch System) rocket in support of the Artemis campaign. During the Jan. 17 test, operators followed a “test like you fly” approach, firing the engine for the same amount of time – almost eight-and-a-half minutes (500 seconds) – needed to launch SLS and at power levels ranging between 80% to 113%. Image Credit: NASA/Danny Nowlin View the full article
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5 min read OpenET Moisture Measurement Tool is Proving Highly Accurate This is a false-color image, acquired December 26, 2018, with the OLI (Operational Land Imager) on Landsat 8, and shows flooded rice fields along the Sacramento and Feather Rivers. Inundated fields appear dark blue; vegetation is bright green. NASA Earth Observatory / Lauren Dauphin As the world looks for sustainable solutions, a system tapping into NASA satellite data for water management has passed a critical test. Called OpenET, the system uses an ensemble of six satellite-driven models that harness publicly available data from the Landsat program to calculate evapotranspiration (ET)—…
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4 min read Preparations for Next Moonwalk Simulations Underway (and Underwater) Alabama A&M University Agribition Center will host the final Break the Ice Lunar Challenge featuring a large dirt-based indoor arena on 40 acres of land, offering plenty of green space to build Break the Ice’s complex testing infrastructure.Photo Courtesy: Alabama A&M University Extension By Savannah Bullard NASA has selected Alabama A&M University’s Agribition Center in Huntsville, Alabama, to host the final level of the agency’s Break the Ice Lunar Challenge, using indoor and outdoor space to ground test the finalists’ solutions. The challenge opened in 2020 to find no…
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Jennifer Kunz, associate director, technical, at NASA’s Kennedy Space Center in Florida, participates in a virtual Town Hall meeting on Jan. 13, 2022, for Kennedy employees. NASA/Kim Shiflett Jennifer Kunz, associate director technical of NASA’s Kennedy Space Center in Florida, released the following statement after speaking Thursday at the SpaceCom / 50th Space Congress in Orlando, Florida. “NASA’s Moon to Mars strategy rests on three pillars: pursuing science to better understand the universe and our origins; inspiring the next generation to achieve the seemingly impossible; and building on American preeminence in science, technology and exploration while strength…
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