It took 250 years for the Laschamps reversal to take place and it stayed in the unusual orientation for about 440 years. At ...

Breakthrough discovery reveals gold and precious metals are slowly leaking from Earth's core through Hawaiian volcanoes.

A spacecraft reentered Earth's atmosphere Saturday, triggering a sonic boom that was heard in parts of Los Angeles County.

Earth's magnetic field was so weak it almost disappeared. Then, seemingly out of nowhere, complex life emerged.

Sporadic E layers lit up during a solar storm, moving from poles to equator—surprising researchers and revealing potential ...

(CNN) — A Soviet-era spacecraft that was designed to make a soft landing on Venus — but instead remained trapped in Earth orbit for decades — likely fell from the sky early Saturday ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. A Soviet-era ...