Planet demographics reveal a puzzling lack of worlds in a certain size range throughout the galaxy F or centuries our solar ...

W.M. Keck Observatory imagery of star system HR 8799 have been time-lapsed. The system hosts four planets that are more massive than Jupiter.

The system is believed to be traveling at least 1.2 million miles per hour (1.93 million kilometers per hour), according to a ...

The Hubble Space Telescope’s latest stunning images have allowed scientists to solve the mystery of the Bullseye Galaxy’s ...

Hubble’s high-resolution imagery allowed researchers to hone in on more of the Bullseye galaxy’s rings — and helped confirm ...

Astronomers have discovered what seems to be a star racing through the Milky Way at 1.2 million mph, dragging a Neptune-sized ...

Astronomers at NASA have caught a glimpse of a star system whipping through space at an unprecedented speed. While the system ...

In 2011, a project that surveyed the Milky Way galaxy for exoplanets — which are planets beyond our solar system — spotted an ...

It turns out that one of the most prominent space artists predicted how a strange celestial object would look — 50 years in ...

Since the star is so feeble, that's well outside its habitable zone ... To figure out which explanation is more likely, ...

In the Milky Way's central bulge, about 24,000 light-years from Earth, a peculiar pair of objects appears to be hurtling ...