"During the early solar system's game of cosmic billiards, Earth was struck by a neighbor,” said Dauphas. “It was a lucky shot. Without the moon's steadying influence on our planet's tilt, the climate ...

Life thrived on Earth far earlier than previously believed, flourishing under the harsh reign of the Hadean eon. LUCA—the last universal common ancestor—was even designed to fend off ancient viruses.

Analysis of iron meteorites from the earliest years of the solar system indicate that the planetary 'seeds' that ultimately formed Earth contained water. When our Sun was a young star, 4.56 billion ...

How old is Earth? Our planet's age is known from a variety of sources, from rocks on our own planet to ones from the moon. When you purchase through links on our site, we may earn an affiliate ...

NASA is preparing to launch a mission to a one-of-a-kind asteroid called Psyche – which may actually be the exposed metal core of what was once a young planet. The mission, also called Psyche, is ...

When we start talking about Earth's origin, there are many theories on the table that have been tossed around for years, with the Big Bang hypothesis often leading the charge. But thanks to the James ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Deep below the Earth’s crust, along the mantle-core boundary, are dense geological blob-like anomalies ...

Scientists have long believed that the Moon was formed by a massive object crashing into the Earth. But what was that thing ...

Our moon has been our constant companion for billions of years. But we're still not sure how it came to be, though scientists have a few theories. The most outlandish theory, in which an alien planet ...

This basal magma ocean has been hotly debated for years. Some geochemical evidence indicates that in the first few hundred million years of the planet's existence, a persistent sea of melt formed at ...

Scientists have revealed a surprising discovery. A meteorite found on Earth is actually older than our planet. The finding opens a new window into how the solar system began. It also explains how the ...