The curious minds at What If investigate whether it is possible to fit another Earth in our solar system, revealing orbital ...

The object dubbed Earth's "second moon" is actually a quasi-satellite that's accompanied the planet since 1957 — not a true ...

For anyone curious about what it's like to stand on another planet, Earth offers a few convincing previews. Mars may be 140 ...

Our planet has experienced dramatic climate shifts throughout its history, oscillating between freezing "icehouse" periods ...

Nitrogen, upon which all life on Earth depends, may hold the key for explaining how early life on the planet evolved and how it could evolve on other planets.

Astronomers have long searched for life within a rather narrow ring around a star, the "habitable zone," where a planet ...

The origin of super-Earths and sub-Neptunes has been revealed in a system of four young planets that are dramatically losing ...

The investment is to accelerate the development of a domestic rare earth mine and a magnet manufacturing facility, both ...

This episode is brought to you by the Music for Scientists album! You probably know about the geomagnetic field that protects the earth from solar storms and radiation. But precision satellites have ...

Close to the summit of an underwater mountain west of the Mid-Atlantic Ridge, a jagged landscape of towers rises from the ...

Superman #34 hits stores Wednesday as Darkseid transforms Earth into Apokolips while the Man of Steel is stuck in a ...

The Artemis 2 astronauts—and the historical keepsakes they’re bringing with them—will travel farther from Earth than any have ...