A faint radio "whisper" from ancient hydrogen reveals the universe was heating up long before it filled with starlight.

An amateur satellite tracker stumbled across the signal which is coming from Starshield satellites in a "hidden" part of the ...

The white pickup truck pulls up to a decommissioned space observatory on top of Mount Blue Sky, one of Colorado’s famous “14ers,” mountains that reach more than 14,000 feet high. The scene is stark on ...