It is the first impact crater discovered under one of Earth’s ice sheets, according to the scientists who found it.
It was thought that water bound up in asteroids would be lost in the intense heat of the impacts when they hit our planet. New experiments say no.
Steve is a glowing strip in the night sky, not far from the northern lights. It was named after a cartoon. Now scientists have learned more.
Two studies focused on the sun’s maximum and minimum periods of activity, yielding new findings about its internal processes and external corona.