A team of astronomers has discovered that the spiral arms of the Milky Way galaxy may stretch further out into space than was ...

"These two planets have densities comparable to a nice blob of shaving foam fresh from the can." ...

NASA's Chandra X-ray Observatory has released four stunning images of cosmic wonders, depicted in red, white and blue for the ...

The featherweight pair — orbiting a star 1,110 light-years away — are the biggest exoplanets found to have less density than ...

Credit: NASA/Daniel Rutter There are planets that make Earth look small. And then there are planets like TOI-791 b and ...

Discovered in 2013, the vibrantly colored planet is one of the coldest known celestial objects ever directly imaged, and ...

Faith Hawthorn had a problem most astronomers would envy. NASA’s Transiting Exoplanet Survey Satellite, known as TESS, had spent four years photographing nearly the entire sky, generating light curves ...

NASA's James Webb Space Telescope is finding clues that are leading scientists toward the origins of the interstellar comet ...

WASHINGTON, May 8 (Reuters) - Astronomers have gotten their clearest look yet at the surface of an exoplanet - a planet beyond our solar system - thanks to NASA's James Webb Space Telescope. Webb ...

Astronomers tracking the skies around our planet have picked up two very different cosmic companions: a vast interstellar comet sweeping through the inner solar system and a small quasi-moon looping ...

Exactly where the comet 3I/ATLAS came from within the Milky Way remains a mystery.