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☆ ‘Halloween comet’ did not survive its flyby of the sun, NASA says
  + stars: | 2024-10-30 | by ( Taylor Nicioli | ) edition.cnn.com   time to read: +5 min
C/2024 S1 was a sungrazer, a comet that passes within a distance of about 850,000 miles (1,367,942 kilometers) from the sun. “Comets are really hard to predict, and sungrazing comets like this are even harder than most. NASA“Statistically, it’s extremely rare for sungrazing comets to survive (as they fly) past the Sun,” Battams told CNN in an email. A handful of larger sungrazing comets have been observed surviving their close pass by the sun, such as comet C/2011 W3 Lovejoy in 2011. However, any debris from C/2023 Tsuchinshan–ATLAS or C/2024 S1 will not pass near enough to Earth to produce a meteor shower, Cooke said.
Persons: ”, Karl Battams, NASA “, ” Battams, Lovejoy, William Cooke, Battams, Cooke, “ I’m Organizations: CNN, European Space Agency, NASA, Comets, Naval Research Laboratory, Lovejoy, Astronomers Locations: Hawaii, Washington ,, Meteoroid
☆ A once-in-century solar storm could fry power grids and knock out satellites. Here's why scientists worry it could happen soon.
  + stars: | 2023-08-13 | by ( Marianne Guenot | ) www.businessinsider.com   time to read: +8 min
Most solar storms are pretty harmless, but every so often, the sun can send hugely powerful storms. The Carrington Event of 1859 is widely considered to be the most powerful solar storm ever recorded. A huge solar flare like this one anticipated the 1989 solar storm. Why scientists are concerned about the next solar peakThe sun's activity is currently growing, and scientists are particularly concerned about the ongoing solar cycle. With enough warning, operators can put in place measures to protect infrastructure from the worst effect of solar storms.
Persons: we've, Mathew Owens, Daniel Verscharen, it's, We've, we'd, Owens, Elon Musk's, Verscharen, Till Organizations: Service, NASA, University of Reading, Solar Dynamics, University College London, Heliospheric, Getty, NOAA, Elon, Elon Musk's SpaceX, Verscharen, European Space Agency Locations: Wall, Silicon, Quebec, Soviet Union, Russia, Canada, Sweden
☆ NASA footage reveals 4 types of solar eruptions and 'holes' that could affect Earth as the sun grows more active
  + stars: | 2023-05-05 | by ( Morgan Mcfall-Johnsen | ) www.businessinsider.com   time to read: +7 min
The sun is slamming Earth with solar flares and high-speed eruptions of plasma. Solar flares can have the power of 1 billion hydrogen bombsA solar flare erupts — the bright flash on the bottom right of the sun — on March 28, 2023. NASA’s Solar Dynamics Observatory captured this image of a solar flare – as seen in the bright flash on the upper right – on March 3, 2023. CMEs are common culprits of solar storms on Earth, since they can send a powerful flood of solar particles washing over the planet. Coronal holes open a highway for solar windA video from NASA's Solar Dynamics Observatory shows the massive hole in the sun's atmosphere.
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