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On this day in space! Aug. 25, 1997: NASA launches Advanced Composition Explorer to track solar wind and so much more
On Aug. 25, 1997, NASA launched the Advanced Composition Explorer, or ACE satellite to study energetic particles traveling through space. It lifted off from Kennedy Space Center in Florida on a Delta II rocket and spent the next three and a half months making its way to its orbit
NASA finds Earth microbes could survive on the Moon
NASA scientists found that microbes brought by astronauts could survive in cold, shadowed niches around the Moon’s South Pole, potentially complicating future searches for pristine lunar chemistry. Some refuges may be no larger than a footprint, while one hardy fungus could even
New Next-Gen Dish Adds Muscle to NASA’s Deep Space Network
NASA’s Deep Space Network facility in California is marking the addition of a brand new 34-meter-wide (114-foot-wide) radio frequency antenna to the agency’s deep space communications and navigation system. The network uses giant dish antennas located at three global facilities t
NASA Ames’ Contributions to Roman’s Mission
Set to launch on Sunday, Aug. 30, NASA’s Nancy Grace Roman Space Telescope will empower astronomers to explore vast regions of the cosmos and settle essential questions in the areas of dark energy, dark matter, planets outside our solar system, and the formation and growth of gal
NASA’s Pandora Mission Begins Study of Exoplanets, Host Stars
Pandora, NASA’s newest exoplanet mission and the first satellite to launch through the agency’s Astrophysics Pioneers program, is now making unique observations of worlds beyond our solar system and the stars they orbit. The mission will determine the atmospheric make-up of at le
NASA Ames Experts Available for Roman Space Telescope Interviews
NASA’s Ames Research Center in California’s Silicon Valley invites media to learn more about NASA’s Nancy Grace Roman Space Telescope, scheduled to launch Sunday, Aug. 30, 2026, from NASA’s Kennedy Space Center in Florida. The Roman telescope will provide a wide, detailed view of
NASA Astronaut Reid Wiseman at Freedom 250 Grand Prix
NASA astronaut and Artemis II commander Reid Wiseman is seen in the two-seat IndyCar as he prepares for driver Conor Daly to take him on a lap ahead of the start of the Freedom 250 Grand Prix, Sunday, Aug. 23, 2026, in Washington, D.C. Image credit: NASA/Joel Kowsky
Watch 2 astronauts replace failed ISS antenna during spacewalk today
Two astronauts will do some repair work outside the International Space Station today (Aug. 25), and you can watch the action live. NASA's Anil Menon and Sophie Adenot of the European Space Agency will conduct a spacewalk today (Aug. 25) to replace a space-to-ground-antenna. The
NASA satellites ace world's 1st 'lost-in-space' GPS-free navigation experiment
No GPS available in space? A satellite experiment may have a solution for that. NASA's Starling mission — made up of a swarm of four cubesats in low Earth orbit (LEO) — is testing out navigation by using other satellites as moving landmarks. The hope is that this tech will allow
NASA's Roman Space Telescope will reveal the universe in a way the JWST and Hubble cannot
Even if you aren't the kind of person who often looks up the latest space images, it's hard to navigate life (especially on the internet) without running into a few. Try choosing a new iPhone background and you'll have your pick of sharp, gray moon portraits. Watch an old "Star T
NASA is about to launch a powerful new eye on the universe
NASA’s Roman Space Telescope has been cleared for final launch preparations ahead of a targeted August 30 liftoff aboard SpaceX’s Falcon Heavy. The powerful new observatory will probe cosmic expansion, the history of the universe, and distant exoplanets.
NASA Sets Coverage for Roman Space Telescope Launch from Florida
Coverage plans are ready for NASA’s Nancy Grace Roman Space Telescope prelaunch and launch activities. Roman is NASA’s next-generation observatory designed to explore some of the universe’s biggest mysteries, including dark energy. NASA and SpaceX are targeting Roman’s liftoff fo
Galactic Gems Glisten in New Gallery From NASA’s Chandra
Galaxies are like cosmic gems, each with characteristics including size and shape that make them distinct. A new gallery released today from NASA’s Chandra X-ray Observatory and other telescopes displays a collection of galactic images that showcase this variety. Astronomers put
NASA Invites Media to LunaRecycle Challenge Finale Event in Alabama
NASA will announce the winners of the final phase of its LunaRecycle Challenge on Friday, Aug. 28, at The University of Alabama (UA) Lee Styslinger College of Engineering in Tuscaloosa, Alabama. Launched in 2024, the challenge incentivizes the invention of new recycling systems t
NASA Can't Rescue The Satellite That Was Going To Rescue Another Satellite After All
The plan was for the Link satellite to fly over to Swift, grab onto it, and haul it back up into a stable orbit. Unfortunately, that's not what happened.
Launching 10,000 tiny 'femtosats' to Saturn? NASA funds 18 futuristic spaceflight ideas
NASA is giving a financial boost to nearly 20 technology investigations to help fuel the incubation of tomorrow's spaceflight research capabilities. The NASA Innovative Advanced Concepts ( NIAC ) program has selected 18 projects for this year's Phase I awards, which will each spl
Nancy Grace Roman Telescope live updates: NASA readies Roman for launch
The Nancy Grace Roman Space Telescope is NASA's next great observatory poised to lead humanity's next generation of astronomical discoveries. The Roman Space Telescope will research the mysteries of dark energy, search for exoplanets and investigate the physics of distant stars.
NASA starshade would enable astronomers to directly image rocky exoworlds
A NASA-led team hopes to take a shortcut to direct imaging of extrasolar Earth-like planets. The idea is to use what they call a hybrid telescope composed of an orbital starshade coupled with the next-generation extremely large ground-based optical telescopes.
NASA Cancels Its Rescue Mission for the Aging Swift Telescope
The LINK probe was supposed to use robotic arms to capture Swift and lift it into a safe orbit. Problems with its control system forced NASA to call off the attempt.
NASA’s New Space Telescope Is Poised to Discover Hidden Facets of the Universe
The Nancy Grace Roman Space Telescope is expected to discover as many as 200,000 new planets and reveal details about the elusive nature of dark matter and dark energy.
Starstruck: NASA Research Shows How Sun’s Ancient History Shaped Earth
At the center of our solar system, the Sun influences every planet that orbits it. In two recent NASA-funded studies, scientists uncovered how ancient events in the Sun’s history may have helped create Earth’s unique climate and driven previously unexplained climatic shifts. In n
How will NASA's astronaut training hub change with commercial space stations?
HOUSTON — What does NASA's astronaut training hub look like these days, as the agency aims to bring more commercial space stations into the fold? It's an interesting mix of government and private companies, of space agency personnel and of contractors, all working together to kee
NASA’s Artemis II Crew Set to Receive Congressional Space Medal of Honor
President Donald J. Trump will award each of NASA’s Artemis II crew members the Congressional Space Medal of Honor at 11 a.m. EDT on Friday, Aug. 28, during a ceremony at the agency’s Johnson Space Center in Houston. NASA astronauts Reid Wiseman, Victor Glover, and Christina Koch
TB 26-04 Updates and Modernization of NASA’s Chemical Equilibrium with Applications (CEA) Code
For more information, contact Mark K. Leader, Glenn Research Center, [email protected] Download the PDF version NASA’s Chemical Equilibrium with Applications (CEA) code is a foundational tool for propulsion system analysis. It provides equilibrium chemistry, rocket performance
NASA Shares Views of August Solar Eclipse from Ground, Air, Space
On Aug. 12, a total solar eclipse darkened skies over Greenland, Iceland, and Spain. As the Moon covered the Sun, it briefly revealed the Sun’s wispy outer atmosphere — the corona — to those in the path of totality who were lucky enough to have clear skies. NASA researchers and p
Trump to award NASA's Artemis II astronauts the Congressional Space Medal of Honor
NASA's Artemis II moon astronauts will join a very exclusive club next week. President Donald Trump will award those spaceflyers the Congressional Space Medal of Honor next Friday (Aug. 28) at Johnson Space Center in Houston to recognize their historic journey around the moon thi
NASA-Funded Mission to Rescue a Falling Space Telescope Officially Ends in Failure
The commercial LINK spacecraft was supposed to give NASA's Swift observatory a boost, pushing it higher into orbit to extend its life. But after launch, LINK experienced several problems. Swift is expected to re-enter Earth's atmosphere and burn up by the end of this year
NASA calls off rescue effort to save doomed telescope
The Swift observatory will now re-enter Earth’s atmosphere in a few months, after a mission to boost it higher failed
NASA Selects University Teams to Help Advance Aviation Research
NASA has selected four university teams to help the agency transform the future of aviation through projects ranging from high-supersonic propulsion systems to low-noise routes for small aircraft flying through cities. The agency made awards through its University Leadership Init
Astronauts Anil Menon and Sophie Adenot on Spacewalk
From left, Expedition 75 flight engineers Anil Menon of NASA (partially obscured and wearing the spacesuit with a red stripe on the legs) and Sophie Adenot of ESA (European Space Agency) work together during a six‑hour and 23‑minute spacewalk outside the International Space Stati
Yamashita leads CPKC Women's Open with 62
Miyu Yamashita shot an 8-under 62 on Thursday for a one-stroke lead over fellow Japanese player Nasa Hataoka in the CPKC Women's Open, with two Canadian teenagers on the leaderboard in the national championship.
Astronauts make history repairing the ISS | Space photo of the day for Aug. 25, 2026
ESA astronaut Sophie Adenot and NASA astronaut Anil Menon complete a spacewalk on Aug. 18, 2026. (Image credit: Roscosmos/Anna Kikina) Intensely focused and tethered to a floating laboratory in the vacuum of space, two astronauts spent over 6 hours working on the International Sp
JWST reveals a race against time for forming planets
Planets form from disks of gas and dust around young stars, but the gas needed for growth does not last forever. New observations from NASA's James Webb Space Telescope (JWST) now offer a new view of how this gas escapes and how the process changes as young planetary systems deve
Perseverance Captures Another Phobos Transit
Description NASA’s Perseverance Mars rover used its Mastcam-Z camera to capture the silhouette of Phobos, one of the two Martian moons, as it crossed in front of the Sun on Aug. 12, 2026, the 1,948th Martian day, or sol, of the mission. The animation has been tinted to simulate w
How to watch the Nancy Grace Roman Space Telescope's launch
NASA's Nancy Grace Roman Space Telescope is scheduled for launch on August 30.
Astronaut vest cuts radiation exposure in half
Nature, Published online: 20 August 2026; doi:10.1038/d41586-026-02556-8 Tests on uncrewed NASA mission showed garment could spare astronauts the worst effects of solar storms.
Why do we care so much that Pluto isn't a planet?
Twenty years after Pluto lost its planetary status, people are still arguing about it. This spring, NASA Administrator Jared Isaacman publicly threw his support behind "make Pluto a planet again," reigniting the familiar debate. Social media threads are filled with people arguing
Mapping Air Pollution With MAIA Sensors in Addis Ababa
Description This map of Addis Ababa, the capital of Ethiopia, shows the locations of 10 air sensors that NASA’s Multi-Angle Imager for Aerosols (MAIA) mission is using to provide one of the most detailed looks ever at the city’s air pollution. Over the course of three years, thes
MAIA Air Sensor at Work in Addis Ababa
Description This roof-mounted air sensor in Addis Ababa, the capital of Ethiopia, is one of 10 used by NASA’s Multi-Angle Imager for Aerosols (MAIA) to study the city’s air quality. MAIA’s air sensors provide a detailed look at particulate matter that is 2.5 micrometers or less i
Webb Opens Treasure Chest
NASA’s James Webb Space Telescope captured this Aug. 6, 2026, infrared image of part of the Carina Nebula, a star-forming region also home to the Cosmic Cliffs. This feature, called the “Treasure Chest,” is an object known as a cometary globule. A cometary globule is an isolated
Artemis Mission Patches
A jacket decorated with Artemis I and II mission patches, along with other NASA patches hangs on the back of a chair on Thursday, Aug. 6, 2026, inside the Rocco A. Petrone Launch Control Center at NASA’s Kennedy Space Center in Florida during a terminal countdown simulation for t
SmallSat 2026
SmallSat 2026 Join NASA in the Exhibit Hall (Booth # 635, 835, 641, and 940) for Storytelling by NASA experts. Full Agenda below. MONDAY, AUGUST 24, 9:00 – 10:00 AM WelcomeJose NunezBryceTech’s Smallsats by the Numbers: 2026Fletcher FranklinSupply Chain ObservationsBruce YostTech
Ancient stars dazzle in a celestial chandelier | Space photo of the day for Aug. 21, 2026
The Chandelier Cluster, or globular cluster NGC 6723, as imaged by the Hubble Space Telescope. (Image credit: ESA/Hubble & NASA, A. Sarajedini, G. Piotto) Stars scattered across the cosmos sparkle in the appropriately named Chandelier Cluster. What is it? The Hubble Space Telesco
AI mapping reveals hidden stage of Arctic freeze with climate implications
As autumn gives way to winter across the Arctic, the ground doesn't immediately freeze solid. Instead, soils often linger near the freezing point for days or even weeks in a phase called the zero curtain. In a new NASA-led study, researchers produced high-resolution maps of the A
Curiosity Blog, Sols 4982–4987: Back to Our Regularly Scheduled Programming
By Allison Dries-Padilla, Missions Operations Specialist at Malin Space Science Systems Earth planning date: Friday, Aug. 14, 2026 This week of Curiosity Mars rover operations takes us back to our “regularly scheduled programming.” After taking a slight detour to investigate the
APOD: 2026 August 24 – Comet 220P in Outburst
APOD Science APOD APOD: 2026 August 24 – Comet… Today’s APOD Archive Submissions Index Search Calendar RSS Education About Discuss APOD Astronomy Picture of the Day Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a