New simulations show carbon enabled Earth’s inner core to solidify under realistic cooling, solving the nucleation paradox.

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 ...

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 ...

A high-precision time measurement system based on the radioactive decay of manganese-53 was used to determine the precise age ...

Panspermia, you'll recall, is the theory that life spread throughout the universe via planetoids, asteroids, or other natural ...

More than four billion years ago, Earth was a very different place. Pools of water froze and thawed in cycles, minerals ...

In 2005, I was navigating winding roads through the Drakensberg Mountains, in Lesotho, Southern Africa. Towering cliff-like features known as escarpments interrupt the landscape, rising up by a ...

Lucas Brefka receives funding from a NASA Exoplanet Research Program grant. Christopher Palma does not work for, consult, own shares in or receive funding from any company or organization that would ...