LEO, GEO, L2, SSO—oh my! The many types of useful orbits can get complicated fast, but our handy guide will help you make sense of it all. Reading time 1 minute Nearly 140 rockets have flown to space ...
Artist Impression of LISA, the Laser Interferometer Space Antenna. Credit: NASA Ever since the telescope was invented in 1608, astronomers have striven for bigger and better telescopes. When it comes ...
Artistic impression of European Data Relay Satellite (EDRS) system (not to scale). These satellites work in GEO and relay data to and from non-GEO satellites, spacecraft, and stations that aren’t ...