A rare kind of meteorite known as enstatite chondrite resembles Earth's composition roughly 4.5 billion years ago. The key to their counterargument resides in a rare type of space rock called ...

Water is essential when it comes to life on Earth, but how exactly it formed on the planet remains a mystery. Past evaluations have proven that the initial days of Earth were too hot to retain ice. At ...

Where did all the water come from? Water, water everywhere. It covers 70 percent of Earth’s surface and earns it the nickname “the blue planet.” And yet… where did it come from? How is it so abundant ...

Researchers have used the chemical fingerprints of zinc contained in meteorites to determine the origin of volatile elements on Earth. The results suggest that without 'unmelted' asteroids, there may ...

Mars has two moons, but they're not quite like Earth's moon. That's raised a lot of questions about where they're from, ...

How did Earth, alone among the solar system's rocky planets, become the home for life? How, among all this frigid lifelessness, did our planet become warm, hospitable, and life-sustaining? The answer ...

The solid inner core at the center of the Earth, surrounded by the outer core, mantle and crust. Here’s why: While it is well known that a material must be at or below its freezing temperature to be ...

Surprisingly enough, the moon is a piece of our planet. The moon is weird. It's completely unlike anything else in the solar system. So how did our planet end up with such a special moon? The answer ...

An iron meteorite from the core of a melted planetesimal (left) and a chondrite meteorite, derived from a ‘primitive’, unmelted planetesimal (right). Researchers have used the chemical fingerprints of ...