TL;DR: International Space Station cameras have captured images of large, mysterious writing etched onto Earth's surface, sparking curiosity and speculation. These unusual markings are visible from ...

"OK, this is kind of out there and caters to your inner Uber-Geek." When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. NASA astronaut Don Pettit ...

NASA viewers say the ISS livestream briefly switched to its routine “signal loss” slate just after a small bright object crossed the frame, igniting fresh UFO chatter. NASA has not issued a specific ...