A standard ballpoint pen will not write in space. Without gravity, the ink refuses to flow. This simple failure illustrates a profound headache in...

NASA astronaut Jonny Kim poses for a photo inside the International Space Station's "window to the world." NASA2025 marked 25 years of nonstop human...

NASA astronaut Jonny Kim poses for a photo inside the International Space Station's "window to the world." NASA2025 marked 25 years of nonstop human...

Scientists using NASA’s James Webb Space Telescope have observed an entirely new type of exoplanet whose atmospheric composition challenges our...

Astronomers are closely watching asteroid 2024 YR4. This space rock may hit the Moon in December 2032. The impact could be visible from Earth. It...

Astronomers are closely watching asteroid 2024 YR4. This space rock may hit the Moon in December 2032. The impact could be visible from Earth. It...

Analysis suggests that instead of the universe continuing to expand, galaxies could be pulled back together via gravity. ......

A piece of space debris is the focus of the closest attention of astronomers worldwide as scientists evaluate a rare, but very dramatic, option. A...

A piece of space debris is the focus of the closest attention of astronomers worldwide as scientists evaluate a rare, but very dramatic, option. A...