New laboratory studies could shed light on a rock containing potential signs of alien life that’s stranded on Mars ...

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Earth formed about 4.6 billion years ago, during the geological eon known as the Hadean. The name “Hadean” comes from the Greek god of the underworld, reflecting the extreme heat that likely ...

Earth's deep mantle stored enough water in rocks to equal one ocean during our planet's early molten days, helping explain ...

In the distant past, the solar system was rife with impacts and collisions. Millions of rocky objects zoomed chaotically through the system, smashing into each other in collisional cascades. Over time ...

In February 1971, Apollo 14 astronauts bagged a moon rock later found to contain a shard blasted from the early Earth. A technician at the Lunar Receiving Laboratory in Houston examines "Big Bertha," ...

The Earth with the upper mantle revealed. Researchers at The University of Texas at Austin have discovered a previously unknown layer of partly molten rock in a key region just below the tectonic ...

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