Supermassive black holes millions to billions times the mass of our Sun lie at the heart of most, maybe all large galaxies. Some of these power brilliantly luminous, rapidly growing objects called active galactic nuclei that ...
Astronomy
Oct 11, 2011
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(PhysOrg.com) -- A new image from the Wide Field Imager on the MPG/ESO 2.2-metre telescope reveals the Lambda Centauri Nebula, a cloud of glowing hydrogen and newborn stars in the constellation of Centaurus (The Centaur). ...
Astronomy
Sep 21, 2011
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A new study combining data from ESO's Very Large Telescope and ESA's XMM-Newton X-ray space observatory has turned up a surprise. Most of the huge black holes in the centres of galaxies in the past 11 billion years were not ...
Astronomy
Jul 13, 2011
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(PhysOrg.com) -- For more than 40 years, scientists have been using the radiation pressure of light to move and manipulate small objects in space. But until now, the movements have always been restricted to very small scales, ...
A team from the Basque Institute for Agricultural Research and Development (Neiker-Tecnalia, Spain) has questioned the generally held belief that the quality of tomatoes depends primarily on their exposure to natural light ...
Other
Mar 25, 2010
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An international team of scientists has observed four super-massive black holes at the center of galaxies, which may provide new information on how these central black hole systems operate. Their findings are published in ...
Astronomy
Dec 10, 2009
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(PhysOrg.com) -- The Orion Nebula is one of the most beautiful sights of the winter night sky, its gas and dust glowing from the intense ultraviolet radiation of a cluster of massive young stars.
Astronomy
Oct 23, 2009
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(PhysOrg.com) -- Challenging conventional wisdom, new research finds that the number of sunspots provides an incomplete measure of changes in the Sun's impact on Earth over the course of the 11-year solar cycle. The study, ...
Space Exploration
Sep 17, 2009
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