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An ultimate speed limit for cooling

How cold can it get? That depends how long you are willing to wait. The third law of thermodynamics, conjectured in 1912 by the Nobel laureate Walter Nernst, states that it takes an infinite time to cool a system to absolute zero – the coldest temperature possible.

Published: Mar 14, 2017 2:15:00 PM

Ancient stardust sheds light on the first stars

A huge mass of glowing stardust in a galaxy seen shortly after the Universe’s formation has been detected by a UCL-led team of astronomers, providing new insights into the birth and explosive deaths of the very first stars.

Published: Mar 8, 2017 11:09:49 AM

World’s oldest fossils unearthed

Remains of microorganisms at least 3,770 million years old have been discovered by an international team led by UCL scientists, providing direct evidence of one of the oldest life forms on Earth.

Published: Mar 1, 2017 6:01:59 PM

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