What if a planet slammed into Earth? Could we survive it - or would we even notice it coming? In this lightning-fast Q&A, ...

A UCLA astronomer who leads planetary defense missions for NASA says avoiding asteroid impacts is “a problem we can ...

About 4. 6 billion years ago, the Solar System formed from a cloud of dust and gas collapsing in on itself due to gravity.

Unfortunately, many species of phytoplankton build shells and may struggle as the oceans relentlessly acidify. These ...

Astronomers have discovered new evidence that suggests the possibility of an unknown planet in our solar system's farthest reaches. The study, published in the Monthly Notices of the Royal ...

How did it go so horribly wrong, in 1986? And how did it destroy Back to the Future star Lea Thompson's career? This is why ...

The aurora borealis is a spectacle of space weather, but solar flares and coronal mass ejections have far more Earthly ...

The timing of Earth's early formation points to a planet that started out dry. So, life’s essential building blocks arrived ...

New research suggests that planets outside our solar system contain far less surface water than scientists once believed.