Over the past decade or so, astronomers have speculated about the characteristics of rogue planets in the Milky Way galaxy.

Astronomers used the Hubble Space Telescope to image "peculiar" galaxy Arp 184 (NGC 1961) about 190 million light-years away.

Astronomers used the James Webb Space Telescope for the largest and deepest sample of galaxy groups, some of which were up to ...

Warmer climates than Earth’s could accelerate life’s development, potentially increasing the number of planets with more ...

K2-18b, an exoplanet 120 light-years away, may be the best hope to confirm that life exists beyond Earth. Here's what to know ...

"We've always known that we need something to complete the puzzle, but we haven't really known what shape or form those missing pieces were going to be." ...

Using the James Webb Space Telescope, a collaboration of NASA and its European and Canadian counterparts, a team of ...

Astronomers have discovered the most distant and thus earliest spiral galaxy ever seen, using the James Webb Space Telescope (JWST). This "twin" of the Milky Way existed just 1 billion years after the ...

This gas needs an enormous amount of energy to shine — more than normal stars can supply. The discovery, based on data from ...

Hubble is still going strong 35 years after it was launched into space. Celebrate its anniversary with some out-of-this-world images.

Astronomers using NASA’s James Webb Space Telescope have taken a major step toward understanding a puzzling type of planet ...

A giant object that has been lurking in the relative galactic vicinity of the Solar System this entire time has just been ...