Diamond rain? Super-ionic water? These are just two proposals that planetary scientists have come up with for what lies ...

Planet Nine is a theory about a massive planet that could be located far beyond Neptune, as per the studies and reports ...

Earth is parting company with an asteroid that's been tagging along as a “mini moon" for the past two months. The harmless ...

A new study reveals that the asteroid 2024 PT5, which has been orbiting Earth for 2 months, may have a "lunar origin." ...

A scientist simulated the contents of the ice giant worlds, and found that a fluid layer may explain each planet’s strange ...

Earth is about to bid farewell to its temporary celestial companion as asteroid 2024 PT5 prepares to depart our orbit on ...

Over many millions of years, NASA suspects the young world could mature into either of the most common planets found in our ...

WB—is estimated to be between 240 and 525 feet across and will pass us at about twice the distance between the Earth and moon ...

Earth may have had a ring made up of a broken asteroid over 400 million years ago, a study finds. The Saturn-like feature ...

"Seeing the world from up that high, where you don't see the borders, you don't see the divisions...it's amazing," said ...

Gazing out the window of a rocket at Earth’s glistening blue perimeter, Emily Calandrelli’s mind was likely far from away ...