Astronomers Detect Stellar Pulsations in Messier 87

A team of astronomers has measured the ‘heartbeats’ of stars within Messier 87, a giant elliptical galaxy located some 53 million light-years from us in the constellation Virgo, and used that data to determine the galaxy’s age. It is the first time astronomers have measured the effect that pulsating red stars have on the light [...] —> Read More