Prior to 2040, the last planetary quintuplet occurred in the year 1186, and according to Uptain, records show that the close ...

We often focus on space observatories that peer beyond Earth. But the vast majority of satellites stare right back at us.

An analysis of two decades of data from NASA's Hubble Space Telescope has provided fresh insights into the complex ...

What if water and hydrogen don’t stay separated inside planets like Earth and Neptune? New research from UCLA and Princeton ...

Decades of constant X-ray emission from the Helix Nebula’s white dwarf suggest debris from a Jupiter-sized planet steadily rains upon the star.

A team of researchers used the James Webb Space Telescope to uncover new details about SIMP 0136, a free-floating planet in ...

Let's celebrate April first as "Healthy Skepticism Day", especially with fantastical astronomy stories and images online ...

Finding alien life won’t be as dramatic as a flying saucer landing on the White House lawn – it’ll be NASA scientists holding ...

Scientists suspected the ice giant hosted auroras—and had already observed them on Jupiter, Saturn and Uranus. But an ...

The findings provide strong evidence that four giant exoplanets 130 light-years from Earth formed much like Jupiter and ...