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Materials Science Jul 30, 2025

4D images show heat shield damage on spacecraft goes below the surface

Rather than completely burning up when a spacecraft reenters Earth's atmosphere, its heat shield's outer surface is sacrificed to protect the rest of the vehicle. The carbon fibers decompose, dissipating the heat.

Earth Sciences Jul 30, 2025

US, India launch powerful Earth-monitoring satellite

A formidable new radar satellite jointly developed by the United States and India launched Wednesday, designed to track subtle changes in Earth's land and ice surfaces and help predict both natural and human-caused hazards.

Environment Jul 28, 2025

Climate change significantly worsened deadly 2022 Durban floods, study shows

The catastrophic Durban floods of April 2022, which claimed 544 lives and displaced tens of thousands, were made significantly worse by climate change, a new study led by Wits University has confirmed.

Space Exploration Jul 24, 2025

Good news for astronauts: Arteries remain normal years after long-duration spaceflight

The structure and function of astronauts' arteries appear to remain stable and free of disease for as long as five years after they've returned from the International Space Station (ISS), according to a new study published ...

Space Exploration Jul 24, 2025

With delay until 2026, Boeing Starliner next flight may not carry humans, NASA says

As SpaceX prepares to send up its 19th Dragon spacecraft with humans on board, the Boeing Starliner—which has only completed half of a crewed mission to date—remains in fix-it mode.

Space Exploration Jul 23, 2025

Video: Ignis Mission: Return to Earth

On 15 July 2025, with the splashdown of the Dragon capsule off the coast of California, the Ignis mission ended after a 20-day space journey. ESA project astronaut Sławosz Uznański-Wiśniewski from Poland, during nearly ...

Planetary Sciences Jul 22, 2025

Five things to know about powerful new U.S.–India satellite, NISAR

A new U.S.–India satellite called NISAR (NASA-ISRO Synthetic Aperture Radar) will provide high-resolution data enabling scientists to comprehensively monitor the planet's land and ice surfaces like never before, building ...

Space Exploration Jul 21, 2025

Deepening Stirling engine analysis: Optimized model offers more accurate performance predictions

Multiple space agencies plan to return astronauts to the moon by the end of this decade. Along with commercial and international partners, these efforts aim to create infrastructure that will ensure a "sustained program of ...

Space Exploration Jul 18, 2025

Vision problems emerge as astronauts spend months in orbit

When astronauts began spending six months and more aboard the International Space Station, they started to notice changes in their vision. For example, many found that, as their mission progressed, they needed stronger reading ...

Space Exploration Jul 16, 2025

NASA's SpaceX Crew-11 mission gears up for space station research

A host of scientific investigations await the crew of NASA's SpaceX Crew-11 mission during their long-duration expedition aboard the International Space Station. NASA astronauts Zena Cardman and Mike Fincke, and JAXA (Japan ...

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