Early Earth
An ‘Extinct’ Crystal May Help Explain the Origin of Earth’s Oceans
Earth’s water may have seeped up from its depths, as opposed to being delivered by impacts from outer space, according to a new study.
Lightning Strikes May Have Sparked Life on Earth, New Study Proposes
Lightning could have been a major source of the element phosphorus, which is necessary for life, on early Earth.
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.
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