A giant impact crater on the moon may contain primordial pieces of the lunar mantle and remnants of an ancient magma ocean, ...

The Wilkes Land crater is a hole in the bedrock beneath East Antarctica's ice sheet measuring 315 miles (510 kilometers) across. Researchers have been trying to explain its existence since the ...

The nearside, covered in ancient deep impacts and volcanic flows ... However, the SPA basin is an exception: as a giant impact basin, its floor is flooded by now-solid lava that welled up through ...

the largest and oldest impact basin on the moon, in blue and purple. | Credit: NASA/GSFC/University of Arizona A giant impact crater on the moon may contain primordial pieces of the lunar mantle ...

Researchers have proposed several explanations for the Wilkes Land crater, including that it could be a volcanic structure, a sedimentary basin, a deeply eroded valley or a meteor impact crater ...