720 XTF Search Results (f1-spectral-Type=X-ray;f3-facility=Chandra X-ray Observatory);f3-facility%3DChandra%20X-ray%20Observatory Results for your query: f1-spectral-Type=X-ray;f3-facility=Chandra X-ray Observatory Thu, 01 Jan 1970 12:00:00 GMT X-ray Crab Nebula. The Crab Nebula, some 6,000 light years from Earth, is the remnant of a supernova explosion. It was seen on Earth in the year 1054. At the center of the bright nebula is a rapidly spinning neutron star, or pulsar, that emits pulses of radiation 30 times a second. This view shows the Crab in the X-ray wavelength. Sun, 29 Aug 1999 12:00:00 GMT Chandra Million Second Exposure. The Chandra Deep Field South refers to a location in space that offers a relatively clear view through the clouds of gas in our Galaxy, allowing us to clearly see the rest of the Universe in X-rays. This image was created by putting together multiple exposures from Chandra’s Advanced CCD Imaging Spectrometer for a cumulative exposure time of over one-million seconds. The multiwavelength observations of this region were carried out by a team led by Riccardo Giacconi in collaboration with scientists from the Very Large Telescope and the Paranal Observatory, both in Chile. Through the course of these investigations, the X-ray background was determined to originate from the central supermassive black holes of distant galaxies. Thu, 01 Jan 1970 12:00:00 GMT The First Black Hole. Since its discovery in 1962, the X-ray binary star Cygnus X-1 has been one of the most intensively studied cosmic X-ray sources. About a decade after its discovery, Cygnus X-1 secured a place in the history of astronomy when a combination of space-based, X-ray observations by the Chandra X-ray Observatory and optical, ground-based observations by the Digitized Sky Survey led to the conclusion that it was a black hole, the first such identification. This is a Chandra X-ray image of Cygnus X-1. Thu, 01 Jan 1970 12:00:00 GMT