DALLAS (AP) — A thick atmosphere has been detected around a planet that’s twice as big as Earth in a nearby solar system, researchers reported Wednesday. The so-called super Earth — known as ...

Scientists discovered that methyl halides, a gas produced by microbes, could be a biosignature for life on distant planets.

It creates the Earth's magnetic field and is about 1,400 miles (2,300 kilometers) thick. The next layer is the mantle. Many people think of this as lava, but it's actually rock. The rock is so hot ...

Beyond the outer core lies the mantle, a 1,800-mile-thick layer of viscous molten rock on which Earth's outermost layer, the crust, rests. On land, the continental crust is an average of 19 miles ...

A thick atmosphere has been detected around the planet thats twice as big as Earth in a solar system about 41 light years away, researchers reported Wednesday, May 8, 2024. (NASA/JPL-Caltech via ...