NASA just found a spacecraft that’s been lost for two years

NASA is reporting that one of the Solar Terrestrial Relations Observatories, known as the STEREO-B spacecraft, has made contact after two years of silence.

Along with its sister STEREO-A, the prodigal probe is tasked with observing the sun. When the two were launched back in 2006, the STEREO spacecraft entered an orbit around the sun respectively just ahead of and just behind the Earth, allowing them to observe solar phenomena such as coronal mass ejections from multiple angles.