Space.com on MSN15h
'Microlightning' between water droplets could have sparked life on Earth. Here's how
The building blocks of life on Earth may have been fueled by tiny sparks hopping between water droplets.
Butch Wilmore and Suni Williams return to Earth after nine unplanned months in space
The pair waved and smiled as they emerged from the SpaceX Dragon, which splashed down off the coast of Florida.