A research team led by Caltech astronomers of Pasadena California have discovered an ultraluminous X-ray (ULX) source that is pulsating. Their…
Hot young stars are wildly active, emitting huge eruptions of charged particles form their surfaces. But as they age they…
Could a strange X-ray signal coming from the Perseus galaxy cluster be a hint of the elusive dark matter in…
Supernovas are some of the most energetic and powerful events in the observable Universe. Briefly outshining entire galaxies, they are…
One of the fastest-moving pulsars ever observed is spewing out a record-breaking jet of high-energy particles that stretches 37 light…
Meet galaxy M60-UCD1. This is not your average, every day, ordinary galaxy. First of all, it’s what is known as…
Like most galaxies, our Milky Way has a dark monster in its middle: an enormous black hole with the mass…
Another busy episode of the Weekly Space Hangout, with more than a dozen space stories covered by a collection of…
This is just pretty! NASA's Great Observatories -- the Hubble Space Telescope, the Chandra X-Ray Observatory and the Spitzer Infrared…
Every once in a while an astronomy book comes out that combines stunning high-definition images from the world's most advanced…