Galactic archaeology: astronomers are using stars as fossils to study the Milky Way

Our Milky Way is thought to be home to as many as 400 billion stars, one of which is, of course, our own sun. But how and when did these stars form, and where did they come from?  Understanding the stellar population of our galaxy could reveal a great deal, not only about our own home … Read more

Why hunting for fast radio bursts is an ‘exploding field’ in astronomy

FRB 121102, a repeating burst, was discovered in 2015. This discovery enabled astronomers to figure out what galaxy the FRB came from and in turn locate hundreds more FRBs. Image credit - Gemini Observatory / AURA / NSF / NRC

by Jonathan O’Callaghan Little more than a decade ago, two astronomers discovered mysterious bursts of radio waves that seem to take place all over the sky, often outshining all the stars in a galaxy. Since then, the study of these fast radio bursts, or FRBs, has taken off, and while we still don’t know what … Read more