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The properties of pre-stellar cores

Stars like the Sun begin their lives as cold, dense cores of dust and gas that collapse under the influence of gravity until nuclear fusion is ignited. These cores contain hundreds to thousands of solar-masses of material ...

dateJan 18, 2016 in Astronomy
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Comet US10 Catalina—the final act

Have you seen it? 2016 has kicked off with a fine apparition of a binocular comet: C/2013 US10 Catalina. We've been following this icy visitor to the inner solar system the first few mornings of the year, a welcome addition ...

dateJan 13, 2016 in Space Exploration
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ALMA reveals planetary construction sites

Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) have found the clearest indications yet that planets with masses several times that of Jupiter have recently formed in the discs of gas and dust around ...

dateDec 16, 2015 in Astronomy
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What leaves the citizens of Beijing breathless

This week's smog alarm at Beijing underlines the relevance of air pollution in the Chinese capital. Researchers of Karlsruhe Institute of Technology (KIT) have been studying factors influencing air quality in the megacity ...

dateDec 16, 2015 in Environment
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How long is a day on Mars?

Mars represents something of a conundrum for scientists. In many respects, it is significantly different from Earth. It's cold, it's dry, there is little atmosphere or precipitation to speak of, and nothing grows there. ...

dateDec 15, 2015 in Space Exploration
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Planetary influences on young stellar disks

A newborn star typically has a disk of gas and dust from which planets develop as the dust grains collide, stick together and grow. Stars older than about five million years lack evidence for these disks, however, suggesting ...

dateDec 14, 2015 in Astronomy
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