This artist’s concept illustrates a quasar, or feeding black hole, similar to APM 08279+5255, where astronomers discovered huge amounts of water vapor. Gas and dust
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Four of the European Southern Observatory's Atacama Large Millimeter/submillimeter Array (ALMA) antennas gaze up at the night sky. Milky Way is visible at left. Credit:
In the morning of 1 May 2011, about an hour before sunrise, five of our Solar System’s eight planets and the Moon could be seen
ESO Photo Ambassador Gerhard Hüdepohl has captured a rare sight: a green flash from the Moon, instead of the Sun. The photographs are very probably
Nine national governmental and research organizations have established a Founding Board for the global Square Kilometre Array (SKA) project. The SKA is a €1.5 billion
The dazzling full moon sets behind the Very Large Telescope in Chile’s Atacama Desert in this photo released June 7, 2010 by the European Southern