NASA Finally Found A Spacecraft It Lost Almost 2 Years Ago
NASA knew it was going to lose the STEREO-B research probe. Recovering it was the hard part.By Ryan Biek | August 23, 2016
NASA has recovered a spacecraft that's been missing for almost two years and spinning 189 million miles away.
The craft is known as STEREO-B. It and its partner, STEREO-A, started a mission in 2006 to record the energy emitted from the sun.
To get different angles of measurement, neither spacecraft was set to rotate in line with Earth. And naturally, at some point, one of them would be at the opposite side of the sun compared to Earth.