Analysis of a space rock that landed on a frozen Michigan lake revealed a rich array of extraterrestrial organic compounds. Learn how the meteorite might have been incorporated into life on Earth.

A new NASA study reveals a surprising way planetary cores may have formed—one that could reshape how scientists understand the early evolution of rocky planets like Mars.

They’re found in layers that are distributed irregularly within the surrounding marble. Marble forms as part of the metamorphic (rock-altering) process, when heat and pressure from mountain formation ...