A huge, heart-shaped sunspot shot off a strong solar flare Sunday evening (April 17), temporarily disrupting radio communications here on Earth.
Some of the greatest cosmic mysteries are closer to home than you may think.
Where can you catch a light show in the solar system? Here are some of the locations where we have seen auroras.
As a solar storm warning is issued by the NOAA, there's a possibility of some dramatic space weather next week.
Yes, that's right, there's a hole in the sun, but it's not a sign of anything scary, it's actually a wonderful insight to some pretty 'cool' solar dynamics.
In 'The Martian', Mark Watney deals with a lot of dangerous situations -- food and communications being a couple of them. But what if his camp got hit by a solar storm? How could he protect himself?
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.
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