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Could there be another planet behind the sun?

If you've read your share of sci-fi, and I know you have, you've read stories about another Earth-sized planet orbiting on the other side of the Solar System, blocked by the Sun. Could it really be there?

dateFeb 24, 2015 in Astronomy
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The ages of sun-like stars

The mass of a star is perhaps its most significant feature. It determines how brightly it shines (a star ten times more massive than the Sun will, during its normal lifetime, shine about forty million times brighter than ...

dateFeb 06, 2015 in Astronomy
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Sun sizzles in high-energy X-rays

For the first time, a mission designed to set its eyes on black holes and other objects far from our solar system has turned its gaze back closer to home, capturing images of our sun. NASA's Nuclear Spectroscopic Telescope ...

dateDec 23, 2014 in Space Exploration
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The dark fingers of the solar atmosphere

The Sun is bubbling, forming mysterious finger-like plasma structures in its gaseous envelope, the corona. A German-American team headed by the Max Planck Institute for Solar System Research has now succeeded in explaining ...

dateDec 08, 2014 in Astronomy
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Tracking a gigantic sunspot across the Sun

An active region on the sun – an area of intense and complex magnetic fields – rotated into view on Oct. 18, 2014. Labeled AR 12192, it soon grew into the largest such region in 24 years, and fired off 10 sizable solar ...

dateOct 31, 2014 in Space Exploration
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