Researchers have found a candidate for the hypothetical Planet Nine, which could be an undiscovered giant planet way out in ...

The popular whodunit series "Poker Face" starring Natasha Lyonne returning for its second season and Steven Soderbergh's ...

Our solar system may have a ninth planet after all, following the declassification of Pluto nearly two decades ago, ...

But no matter, the country he now rules (more or less) is still spending $75 billion annually and, as of now, planning to spend $1.7 trillion over the next 30 years to update or—the term of the ...

Caroline Delbert is a writer, avid reader, and contributing editor at Pop Mech. She's also an enthusiast of just about ...

Catch some morning meteors, see the Moon reach First Quarter, and watch Mars visit the Beehive in the sky this week.

Using two infrared space telescopes and a 23-year gap, scientists may have spotted a mysterious, slow-moving object beyond ...

The presence of another planet in the solar system could explain the odd movements of some of the bodies in the Kuiper Belt.

An object seen to have moved in the time between when it was imaged by the IRAS and AKARI surveys in 1983 and 2006 ...

Astronomers have detected a promising sign of a ninth planet lurking at the the farthest reaches of the Solar System.