Astronomers make rare discovery that could help explain Milky Way formation

The Terzan 5 cluster could shed light on how the Milky Way was formed after an Italian-led team of astronomers found it contained two very different types of stars; some very young and some very old. The 7 billion year age gap between the two different types of stars suggests that star formation in Terzan 5 was not continuous but happened in two very distinct bursts. Sep 7, 2016

Extraterrestrial radio signals investigated

A curious radio signal picked up by a Russian telescope is probably not a transmission from an extraterrestrial civilisation, but astronomers in California are taking a second look anyway, the SETI Institute said. A group of Russian astronomers last year detected what appeared to be a non-naturally occurring radio signal in the general location of a star system 94 light-years from Earth. SETI astronomers have spent the last two nights using an array of radio telescopes in California to study the suspect star, HD 164595, which has one known planet in orbit. Aug 31, 2016