Scientists believed the asteroid Psyche could be a big ball of pure iron, but it's likely harboring a hidden rocky component, new research shows.

A hidden layer of soil and dust on the moon is much thicker than previously known. It may reveal new info about the history of the moon.

The near-Earth asteroid Kamo`oalewa might be a lost piece of the moon. "This spring, we got much needed follow-up observations and went, 'Wow it is real.'"

An asteroid that struck Earth 66 million years ago killed nearly all dinosaurs, plants, and animals. So how did some creatures survive the mass extinction?

Two physicists propose a new, bolder approach to planetary defense called PI, or "Pulverize It."

Asteroid 16 Psyche has been estimated to be worth $10,000 quadrillion, but new findings could slightly devalue the iron-rich asteroid.

New research digs into ferrovolcanism, volcanoes on planets made of metal. It could give us a glimpse at what those metallic worlds might look like.

New clues may finally have solved the case of how the dinosaurs went extinct, dating their doom to 66 million years ago, researchers report.

Data from a NASA mission is shedding light on the "rubble pile" asteroid Ryugu and how it might've lost a lot of its water.

Mass extinction of land animals happen on a 27-million-year cycle, researchers report. The timeline matches periodic asteroid impacts and volcano eruptions.