Astronomers have searched for Planet X for over a century without success. This video explains why distance, darkness, and technology make it so hard to detect distant worlds. It shows how past ...

We truly hope it doesn't rain on your parade.

A celestial planet parade of six planets will lineup in the sky for the next planetary parade this weekend. Here's what to know and where to watch.

Paris, France — French authorities have asked Elon Musk to appear to answer questions as part of a probe into his social media platform X, the Paris prosecutor's office said Monday, as authorities ...

Astronomers have found a planetary system that seems to have formed inside-out. While most systems, like our own, have rocky planets closest to their star and gaseous ones further out, the LHS 1903 ...

A planet that may exist, and may be habitable or may be frozen, has been discovered on an Earth-like orbit around a star 146 light-years away When you purchase through links on our site, we may earn ...

The move followed a yearlong investigation into X and escalated a wider standoff between European officials and American tech companies over the regulation of social media. By Catherine Porter and ...

The current image of Mars as an arid and hostile desert contrasts sharply with the history revealed by its surface. Channels, minerals altered by water, and other geological traces indicate that the ...

The French investigation into Elon Musk’s X illustrated a fundamental divide between European and American leaders about how to regulate social media — or whether to restrict it at all. By Adam ...

French police raided the Paris offices of Elon Musk’s X Tuesday and summoned the tech billionaire for questioning as part of a widening probe into the social media company and its AI chatbot Grok. The ...