Comet 3I/ATLAS, only the third known visitor from beyond our Solar System, has been brightening far more rapidly than expected as it approaches perihelion, its closest point to the Sun.

SpaceX Sunday said it is stepping up its efforts to develop a simplified Human Landing System for NASA as it pursues a plan to return to the moon.

Should we prepare for alien invasion? The interstellar object 3I/ATLAS is travelling through our solar system on a hyperbolic ...

Spacetime isn’t something that exists; it’s a model for describing how events happen. Treating events as objects creates philosophical confusion and fuels misconceptions, such as time-travel paradoxes ...

China said Saturday that it successfully launched the Shenzhou-21 spaceship on a mission to the country's orbiting space ...

Astronomers discover a 3-billion-year-old white dwarf, LSPM J0207+3331, actively accumulationplanetary material long after its star’s death, revealing ongoing dynamics in ancient stellar remnants.

1. Don't adjust your wake-up time straight after the time changes. After a few days to a week, your body will acclimate to the new time. Instead, consider taking a short 20-minute nap in the ...

Since the first crew of astronauts reached the International Space Station on Nov. 2, 2000, humanity has had a continuous presence among the stars.

Stargazers using telescopes should be able to see the object in the predawn sky beginning Nov. 11, according to EarthSky.

For 25 years, astronauts have lived and worked onboard the International Space Station (ISS), starting with the arrival of ...

The Earth is so beautiful,” he tweeted, “it is like looking into paradise.” Massimino knows these aren’t moon-landing poetry, and he’s fine with that. “Launch was awesome!” even got roasted on ...

Avi Loeb criticizes NASA for not releasing key images and for classifying 3I/ATLAS as a comet without conclusive evidence ...