Articles on Space weather

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The low solar corona as viewed in extreme ultraviolet light. Bright regions are where the most energetic solar storms are born. An eruption in action can be seen in the bottom-left. NASA’s Solar Dynamic Observatory (SDO) satellite.

Total solar eclipses reveal the dark and stormy side of the sun we never see

Scientists spend years preparing for the two-minute window of a total solar eclipse.
A huge solar flare flashes in the middle of the sun on Sept. 6, 2017. A separate image of the Earth provides scale. NASA/GSFC/SDO

Massive sunspots and huge solar flares mean unexpected space weather for Earth

At a time in the sun's cycle when space weather experts expect less solar activity, our star is going bonkers with solar flares and coronal mass ejections. What effects will Earth feel?
An artist’s illustration of Kappa Ceti whose stellar winds are 50 times stronger than our sun’s. Any Earth-like planet would need a magnetic field to protect its atmosphere if it was to stand a chance of hosting life. M. Weiss/CfA

What the ‘weather’ is like on a star can help in the search for life

In the search for life on other planets in the universe we need to find the right kind of star, and it needs to have the right kind of space weather.

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