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1. Robert McNees (mcnees@mastodon.social)'s status on Monday, 24-Jun-2024 14:18:18 UTC Robert McNees

   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