The butterfly shape is created by the stellar ballet of the two sun-like stars at the end of their lives.
A delicate sunshield unfolded on a test unit of NASA's James Webb Space Telescope.
Even a mild shock wave in the solar wind can suddenly amp up the equatorial electrojet and create localized magnetic storms.
An astrophotographer spotted a beautifully-formed solar prominence that looks like a giant version of the famous Parisian landmark.
The great cosmologist Bruce Springsteen once sang "everything dies, baby, that's a fact," but does that assertion include the little universe we call home? Julian takes us through the current theories on what will happen to our space and time.
There's been no increase in solar activity since 1700, a new study reports, so humans aren't off the hook for climate change. Continue reading →
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.
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.
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