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NASA tested RS-25 engine No. 10001 on Oct. 21 on the Fred Haise Test Stand at NASA’s Stennis Space Center near Bay St. Louis, Mississippi. Test teams fired the developmental engine for almost eight-and-a-half minutes (500 seconds), the same amount of time RS-25 engines fire during launch of NASA’s SLS (Space Launch System) rocket. During […]

October 21, 2026 at 05:30AM
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Interstellar probes. Lunar drones. Helicopters on Mars. When a group of Caltech graduate students and enthusiasts began conducting rocket-propulsion tests in Pasadena’s Arroyo Seco on Oct. 31, 1936, they had no idea that their work marked the inception of the Jet Propulsion Laboratory. Ninety years later, the lab, now managed by Caltech for NASA, isn’t […]

October 21, 2026 at 05:30AM
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From orbit, today’s space-based laser instruments measure Earth’s forests and terrain one narrow line at a time. Between those lines are enormous gaps that include millions of acres of land scientists never directly measure. NASA’s CASALS instrument will blend machine learning with an ultra-compact lidar instrument to adaptively ‘sweep’ large swaths of Earth’s surface. This […]

October 21, 2026 at 05:30AM
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The powerful low-pressure system formed over the North Atlantic out of the remnants of Hurricane Isaias.

October 21, 2026 at 05:30AM
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Destined for Mars and beyond, NASA’s Space Reactor-1 (SR-1) Freedom will be humanity’s first fission-powered spacecraft to travel outside Earth’s orbit. Announced during NASA’s “Ignition” event, this mission will demonstrate nuclear electric propulsion in deep space, and progress is underway on its key element: the nuclear power module. To expedite development of the spacecraft, NASA […]

October 20, 2026 at 05:30AM
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Rockets vibrate, shake, and flex intensely as they climb into space, and spacecraft packed with delicate scientific instruments must survive those forces. Before any rocket leaves the ground, NASA engineers work to predict how those stresses will affect every part of a spacecraft. To do that, engineers in the Dynamic Environments Group with NASA’s Launch […]

October 19, 2026 at 05:30AM
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The four crew members in NASA’s simulated Mars mission have spent the past year living and working in isolation in a confined habitat at NASA’s Johnson Space Center in Houston.

October 19, 2026 at 05:30AM
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NASA’s Curiosity captures the dawn on Mars – as well as elongated ridges formed by wind erosion, or yardangs – in this close-up from a panorama released on Oct. 6, 2026. This is the most detailed view yet of distant, wind-carved Martian cliffs, highlighting features the mission’s scientists have long been waiting to see up […]

October 19, 2026 at 05:30AM
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Fall color covers the forested slopes of Bieszczady National Park, while patches of polonina, a type of high-mountain meadow, have turned tan.

October 19, 2026 at 05:30AM
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APOD Science APOD APOD: 2026 October 18 –… 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 brief explanation written by a professional astronomer. Sonified: Eagle Nebula […]

October 18, 2026 at 05:30AM
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APOD Science APOD APOD: 2026 October 17… 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 brief explanation written by a professional astronomer. 3D 67P Explanation: Put […]

October 17, 2026 at 05:30AM
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NASA Administrator Jared Isaacman has named Stephen Cash director of the agency’s Marshall Space Flight Center in Huntsville, Alabama, effective Monday, Oct. 19. Cash, a veteran NASA engineer and aerospace executive, returns to lead the center where he began his career more than four decades ago. “Marshall contributions to NASA’s missions are historic and it’s […]

October 16, 2026 at 05:30AM
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High-definition images of nighttime lights show where the hurricane knocked out power along the Florida Panhandle and how quickly the lights came back.

October 16, 2026 at 05:30AM
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NASA is playing an important role in JAXA’s (Japan Aerospace Exploration Agency) MMX (Martian Moons eXploration) mission, to advance our understanding of Mars’ moons and build on the agency’s long history of exploring the Red Planet. The mission aims to characterize and determine the origin of Mars’ moons Phobos and Deimos and deliver a sample […]

October 15, 2026 at 05:30AM
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A phenomenon rarer than a solar eclipse and more powerful than any single storm system is unfolding this fall, and NASA is tracking it closely. El Niño is a natural climate pattern that emerges roughly every two to seven years marked by warmer-than-normal water temperatures in parts of the equatorial Pacific. NASA scientists are keeping […]

October 15, 2026 at 05:30AM
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During El Niño, a cascade of fires across the tropics begins in equatorial Asia and continues in the central and eastern Amazon.

October 15, 2026 at 05:30AM
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NASA will preview two upcoming spacewalks to complete solar array installation and power augmentation of the International Space Station during a news conference at 2 p.m. EDT, Tuesday, Oct. 20, from NASA’s Johnson Space Center in Houston. NASA will stream the event through a variety of platforms. Learn where to watch online: https://ift.tt/RoAZlVJ NASA participants […]

October 14, 2026 at 05:30AM
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Students in Florida will hear from NASA astronauts Jessica Watkins and Luke Delaney as they answer prerecorded STEM questions while aboard the International Space Station. The Earth-to-space call will begin at 12 p.m. EDT Friday, Oct. 16, and will stream live on the agency’s Learn With NASA YouTube channel. This event is hosted by Sally Ride Elementary School […]

October 14, 2026 at 05:30AM
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Description Rover tracks and a rocky Martian landscape are shown in this image captured by one of the navigation cameras (navcams) aboard NASA’s Perseverance Mars rover on Oct. 11, 2026, the 2,006th Martian day, or sol, of the mission. During that sol’s drive, spanning 299.6 feet (91.31 meters), the mission passed a major milestone: pushing Perseverance’s total […]

October 13, 2026 at 05:30AM
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NASA’s SpaceX 35th commercial resupply mission lifted off at 6:33 a.m. EDT Tuesday aboard a Falcon 9 rocket from Space Launch Complex 40 at Cape Canaveral Space Force Station in Florida, carrying more than 6,300 pounds of supplies and hardware, bound for the International Space Station. Following its successful launch, the SpaceX Dragon spacecraft will […]

October 13, 2026 at 05:30AM
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