Finally, we have proof of the moon's 'noble' heritage!
As Comet 67P/Churyumov-Gerasimenko approaches perihelion, the sun is heating up its nucleus and the solar wind is causing its tail to evolve. And the Rosetta mission has a ringside seat.
For the first time, astronomers have detected an aurora erupting beyond the solar system, giving us a profound glimpse at the magnetism surrounding a brown dwarf, or 'failed star.'
Not only has NASA’s New Horizons mission confirmed that Pluto has an extended atmosphere, after its historic flyby on July 14, the spacecraft observed a “cavity” in the solar wind, revealing a long plasma tail reminiscent of a comet’s ion tail.
Pluto may be, on average, 40 times further away from the sun than Earth, but that doesn't mean it doesn't experience the sun's outbursts.
A giant eruption from the sun that scientists thought would hit Earth in 2014 missed because the sun's magnetic field channeled it away from the planet in an unexpected way.
After a long period of calm, the sun awoke from its slumber and erupted with one of the most powerful solar flares of the year on Tuesday.
When you block out the glare of the sun, usually invisible -- and beautiful -- phenomena pop into view.
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