On August 12, 1960, NASA launched Echo 1A, a 100-foot balloon that became its first successful communications satellite. The passive spacecraft reflected telephone, radio and television signals between distant points on Earth. It also helped NASA study atmospheric density, solar pressure and satellite triangulation before re-entering Earth’s atmosphere in 1968.from Science News: Fresh Discoveries, Research & Breakthroughs https://ift.tt/ywRk1Vv
No comments:
Post a Comment