A rapidly growing sunspot has fired off at least 18 M-class and three X-class flares in just 24 hours, including an intense X8.3 eruption.
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The comet broke into pieces after making a close approach around the sun in October 2025.
“What makes the event even more extraordinary is that it did not involve a single volcano, but multiple active sources.”
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Using data gathered by NASA’s Juno Jupiter orbiter, scientists estimate that Europa’s ice shell is about 18 miles thick — which could make it hard for nutrients to get down to its buried ocean.
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Along with this stunning image is the first-ever global estimate of river water discharge and overall sediment suspension.
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The interstellar visitor may still have a few things to tell us before it leaves our solar system.
To understand what Americans are experiencing with this winter blast, we need to look more than 20 miles above the surface of Earth, to the stratospheric polar vortex.
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A 250th anniversary only comes once in a lifetime.
Hunt for the names of mysterious dwarf planets, most of which orbit on the fringes of our solar system
This coming July, Venus could plow through the dust generated by an asteroid breakup thousands of years ago, potentially sparking an impressive meteor shower.
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