Live coverage: Russian cosmonauts land in Kazakhstan

Three Russian cosmonauts rode a Soyuz spacecraft back to Earth Thursday after departing the International Space Station to wrap up 195 days. The Soyuz MS-21 spacecraft carrying cosmonauts Oleg Artemyev, Denis Matveev, and Sergey Korsakov undocked from the station at 3:34 a.m. EDT (0734 GMT) and landed at 6:57 a.m. […]

101 Must-See Cosmic Objects: Seyfert’s Sextet

Located in Serpens Caput, a constellation with few deep-sky objects, Seyfert’s Sextet was one of the first compact galaxy groups ever noted. That occurred in 1948, when astronomer Carl Seyfert discovered that the previously cataloged NGC 6027 was actually more than one object. His Sextet became the densest group of […]