Astronomers warn that BlueWalker 3, a test spacecraft with a large array of antennas, could be the first of many larger satellites in low-Earth orbit that interfere with astronomical observations.
Author: Becky Ferreira
Why Did This Extinct Bird Have Such a Weird, Long Toe?
The Cretaceous Period flier, trapped in amber 99 million years ago, had features unlike any bird living today.