NASA's James Webb Space Telescope has achieved a groundbreaking feat by definitively detecting crystalline ice water in the ...

From gravel-size meteoroids to mountain-size asteroids and even visitors from other star systems, space is packed with ...

Crystalline water ice has been found in a dusty debris disk that orbits a Sun-like star, only 23 million years old, 155 light-years away.

William Shatner called for an end to the International Astronomical Union’s ‘tyranny of the cosmos’ as he made a planetary plea to Donald Trump ...

The mystery of how planets and icy objects formed in the farthest reaches of our solar system just took an exciting turn. A ...

This week is the best time in May to view the night sky. Here's everything you can see during May's dark skies, from an upside-down bear to some of the oldest stars in the universe.

HD 209458 b, nicknamed "Osiris," is one of the first exoplanets seen passing in front of its star, and it's about 159 light-years from Earth. Kepler-186f is the first Earth-sized planet discovered in ...