Astronomers have determined the Big Bang occurred about 13.8 billion years ago and have evidence from the SDSS that supermassive black holes with masses of about a billion times that of the sun existed by about 12.8 billion years ago.

Giant black holes are generally stationary objects, sitting at the centers of most galaxies. However, using data from NASAs Chandra X-ray Observatory and other telescopes, astronomers recently hunted down a supermassive black hole that may be on the move.

The Centaurus Cluster is a collection of hundreds of galaxies located about 145 million light years from Earth.

Scientists have discovered a mysterious flash of X-rays using Chandra X-ray Observatory, in the deepest X-ray image ever obtained.

In astronomy, a binary system is one where two objects are close enough that they orbit each other because they are gravitationally bound to one another.

Thirty years ago on February 24, 1987, observers in the southern hemisphere noticed a new object in the Large Magellanic Cloud.

Every so often, an object will pass too close to a black hole and be ripped apart by its intense gravitational forces.

What happens when astronomers use Chandra to take a long look at the same patch of sky?

There are many extraordinary things in the Universe. For example, astronomers have found many examples of supermassive black holes erupting in powerful outbursts that can stretch for millions of miles.

Although there are no seasons in space, this cosmic vista invokes thoughts of a frosty winter landscape.