The Space Force's top-secret aircraft has been in a highly elliptical high Earth orbit since December 2023. When you purchase through links on our site, we may earn an affiliate commission.

How fast is Earth moving? The sun doesn't sit idly in the center of these ellipses at equal distance from their farthest points. It actually follows its own tiny elliptical orbit around what is ...

More objects are being launched into space than ever, and most are headed for low Earth orbit. This region of space has become increasingly crowded with launches from SpaceX and others that have ...