Crater
A City-Sized 'Eye' Has Been Discovered on Mars
The Martian crater is 18 miles wide and looks eerily like an eye, according to the European Space Agency.
Unexplained Magnetic Anomalies on the Moon Are Protecting Its Ice, Scientists Say
Two of the most enduring Moon mysteries may be deeply linked, according to new research.
How the Moon’s Far Side Got Its Radioactive Spots
The mystery of why the near and far sides of the Moon are so different may be written in thorium, a weakly radioactive element.
Scientists Want to Build a Giant Moon Telescope to See Into the Deep Past
The Ultimately Large Telescope, a concept for a spinning liquid telescope, could see the light of the first stars.
A Mysterious Crater Suddenly Opened Up in the Arctic Tundra
Mysterious craters have been popping up in the Arctic tundra in recent years, and the latest example is 50 meters deep.
Ancient Crystals Have Revealed the Oldest Meteorite Crater on Earth
The Yarrabubba impact structure in Australia dates back some 2.2 billion years, 200 million years older than any other known crater.
There’s a Mountain on the Moon That Could Help Explain Life on Earth
A small peak in Mare Crisium contains ancient information about the early habitability of our home world.
Scientists Find Direct Evidence of 'Day One' of Dinosaurs' Extinction
The apocalyptic 24 hours after a huge asteroid struck Earth is written into the center of an underwater impact crater.
Scientists Have Detected a Huge Anomaly Under the Moon’s Largest Crater
An object five times larger than Hawaii’s Big Island is embedded miles under an impact crater on the far side of the Moon.
NASA Releases Opportunity Rover’s Final Panoramic View of Mars
Opportunity spent its final months building this panorama of its location, which is now its gravesite.
NASA Discovers Second Crater Hidden Under Greenland's Ice
Within a matter of months, NASA has discovered the first subglacial craters known to science. They’re both huge and relatively young.
How an Ancient Rock Carrying Earth’s Oldest Known Crystals Ended Up on the Moon
"Big Bertha," a lunar rock that was picked up by Apollo 14 astronauts, originated on Earth 4.1 billion years ago, according to a new study.