Several hundred million years ago, two galaxy clusters collided and then passed through each other. This mighty event released a flood of hot gas from each galaxy cluster that formed an unusual bridge between the two objects.
One of the fundamental ideas of cosmology is that everything looks the same in all directions if you look over large enough distances. A new study using data from NASA's Chandra X-ray Observatory and ESA's XMM-Newton is challenging that basic notion.
Astronomers using NASA's Chandra X-ray Observatory have made one of the first experimental tests of string theory, a set of models intended to tie together all known forces, particles, and interactions.
Scientists have found stars forming at a furious rate in the Phoenix galaxy cluster. The supermassive black hole in the center of galaxy clusters usually stifles star formation, but the one in Phoenix is not.
Two groups of scientists, using data from Chandra X-ray Observatory and other telescopes, have found evidence that the growth of the biggest black holes in the Universe is outrunning the rate of formation of stars in the galaxies they inhabit.
In biology, "symbiosis" refers to two organisms that live close to and interact with one another. Astronomers have long studied a class of stars-- called symbiotic stars--that co-exist in a similar way.
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.
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.
Astronomers have found a pair of extraordinary objects that dramatically burst in X-rays. This discovery, made using data from NASA's Chandra X-ray Observatory and ESA's XMM-Newton observatory, may represent a new class of explosive events.
The range of mass in our everyday lives and what we can appreciate in sporting events like the Olympics is just the tip of the proverbial iceberg - especially once we allow our minds to consider the wonders of space