Firefly Aerospace has shared an awesome video clip captured by its Blue Ghost spacecraft as it heads to the moon.

What If is a Webby Award-winning science web series that takes you on a journey through hypothetical worlds and possibilities, some in distant corners of the universe, others right here on Earth.

There's a lot more to Earth than meets the eye. Far from being just a roundish rock barreling through space, our planet is composed of several layers held together by intense forces of gravity.

Potential patches of Earth's ancient crust, sometimes called "sunken worlds," may have just been discovered deep within the mantle, thanks to a new way of mapping the inside of our planet.

"We don't know for sure," Bradford Foley, a geodynamicist at Penn State, told Live Science. "I think it's still considered one of the great unsolved problems in geophysics today." Earth's ...

In an open letter set to be sent later on Thursday, the Congressional Progressive Staff Association will call on members of Congress to consider implementing a "rotating" 32-hour workweek for staff.