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Astronomical measurements must account for gravity

One of the consequences of general relativity is that light can be deflected by nearby masses. Mass curves space, and this curvature causes light to bend slightly. It was first observed during a total eclipse in 1919. The ...

dateSep 25, 2014 in Astronomy
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Image: Rosetta solar wing

This is one of Rosetta's two massive solar wings, keeping ESA's comet-chaser powered out in the cold depths of space, currently some 448 million km from the Sun.

dateNov 12, 2014 in Space Exploration
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Astronomers find solar storms behave like supernovae

(Phys.org) —Researchers at UCL have studied the behaviour of the Sun's coronal mass ejections, explaining for the first time the details of how these huge eruptions behave as they fall back onto the Sun's surface. In the ...

dateFeb 20, 2014 in Astronomy
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NASA's IRIS spots its largest solar flare

(Phys.org) —On Jan. 28, 2014, NASA's Interface Region Imaging Spectrograph, or IRIS, witnessed its strongest solar flare since it launched in the summer of 2013. Solar flares are bursts of x-rays and light that stream out ...

dateFeb 21, 2014 in Space Exploration
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Could alien life cope with a hotter, brighter star?

The stars in the night sky shine in myriad hues and brightnesses—piercing blues, clean whites, smoldering crimsons. Every star has a different mass, the basic characteristic that determines its size, lifespan, light output ...

dateMar 24, 2014 in Astronomy
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