Embed Notice

Friends, here is a fun little physics story about satellites and relativity. It’s a day late for an #OTD, but please indulge me.

The Navigation Technology Satellite 2 (NTS-2) was launched into orbit on June 23, 1977, an early step in establishing the GPS NAVSTAR network. It was the first satellite to carry a Cesium atomic clock into orbit! 🧵

Image: Institute of Navigation