The iconic Arecibo telescope, damaged by two cable failures within three months, is beyond repair.
Astronomers have reconstructed the Milky Way's merger history, finding that our galaxy has absorbed five large satellite galaxies in the last 12 billion years.
In-depth analysis of a flash of radio waves coming from a Milky Way magnetar have convinced astronomers: Magnetars produce at least some fast radio bursts.
This week in astronomy news: Distant galaxies that look older than they are and a terrestrial planet that might be drifting through our galaxy.
Astronomers have tallied how star-making material evolved over cosmic time — and they've predicted how long stars will keep forming before the universe goes dark.
A cosmic magnifying glass has revealed a Milky Way-like galaxy in the early universe that doesn’t conform to cosmologists’ expectations.