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 ...

Road-tripping across the solar system sounds a lot more realistic when there’s somewhere to refuel along the way. According to a new NASA-backed study, Saturn’s largest moon, Titan, may have ...

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

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 ...

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 ...

A fleet of NASA missions has likely uncovered a collision between two ultradense stars in a tiny galaxy buried in a huge stream of gas. Astronomers have never seen this type of explosive event in an ...

More than 6,000 exoplanets, or worlds beyond our solar system, have so far been confirmed. The new technique involved analyzing old data from NASA's TESS satellite, focusing on fainter stars. Finding ...

For millions of years, a frozen wanderer drifted between the stars before slipping into our solar system as 3I/ATLAS—only the third known interstellar comet ever spotted. When scientists turned NASA’s ...