Star Discovered in Closest Known Orbit Around Likely Black Hole Astronomers have found evidence for a star that whips around a black hole about twice an hour. This may be the tightest orbital dance ever witnessed for a likely black hole and a companion star. This discovery was made using NASA’s Chandra X-ray Observatory as well as NASA’s NuSTAR and CSIRO’s Australia Telescope Compact Array (ATCA). The close-in stellar couple – known as a binary…"Closest Orbit Around Black Hole"
NASA Telescope Reveals Largest Batch of Earth-Size, Habitable-Zone Planets Around Single Star Feb. 22, 2017 RELEASE 17-015 This illustration shows the possible surface of TRAPPIST-1f, one of the newly discovered planets in the TRAPPIST-1 system. Scientists using the Spitzer Space Telescope and ground-based telescopes have discovered that there are seven Earth-size planets in the system. Credits: NASA/JPL-Caltech View this and many more images, as well as several videos, in an extensive multimedia gallery highlighting this…"7 New Planets!"