The Chandra X-ray Observatory, previously known as the Advanced X-ray Astrophysics Facility, is a Flagship-class space telescope launched aboard the Space Shuttle Columbia during STS-93 by NASA on July 23, 1999. Read More
The center of our Milky Way galaxy is too distant for us to visit in person, but we can still explore it. Telescopes give us a chance to see what the galactic center looks like in different types of light. By translating the inherently digital data ( ...
A new study using data from NASA's Chandra X-ray Observatory and ESA's XMM-Newton is challenging the basic notion of cosmology that says everything looks the same in all directions if you look over large enough distances. ...