Stories about: crater  

The mound sits smack in the middle of a crater

The two craters sit 16 kilometers (9 miles) from one another

The glass lies hidden in impact craters on the Red Planet

What are blue patches doing on the Red Planet?

Then again, it might also be just another impact crater

The impact zone associated with these ancient collisions measures about 400 kilometers (250 miles) across

The Earhart crater, whose discovery was announced this past Monday, measures about 124 miles (200 kilometers) across

The crater, estimated to measure about 2 kilometers (1.2 miles) across, was first spotted on December 20, 2014

The methane was released by the thawing permafrost, researchers say

Researchers are utterly clueless about what might have caused the hole to form

The resulting crater measured 8 kilometers (5 miles) in diameter, researchers say

The large crater swallowed cars, train tracks, walls and pavements

A NASA lunar orbiter is providing live sounds streams

The data may help experts develop safer space exploration techniques

The dinosaurs' demise could not have been caused by an asteroid, specialists claim

The finding raises hopes of an underground water network, perhaps surviving today

NASA snapshots disclose novel phenomenon on Mercury's surface