News tagged with sky

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What is time – and why does it move forward?

Imagine time running backwards. People would grow younger instead of older and, after a long life of gradual rejuvenation – unlearning everything they know – they would end as a twinkle in their parents' eyes. That's ...

dateFeb 23, 2016 in General Physics
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Messier 3 (M3) – the NGC 5272 globular cluster

During the late 18th century, Charles Messier began to notice a series of "nebulous" objects in the night sky which he originally mistook for comets. With the hope of preventing other astronomers from making the same mistake, ...

dateFeb 16, 2016 in Astronomy
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Pan-STARRS chases source of LIGO gravity wave event

The email came in the night on Sept 15. A potentially significant event had happened at the Laser Interferometer Gravitational-wave Observatory, or LIGO, during their engineering run. A ripple in spacetime had occurred somewhere ...

dateFeb 15, 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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