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distant-traveller:
“ First moments of a solar flare in different wavelengths of light “ On Feb. 24, 2014, the sun emitted a significant solar flare, peaking at 7:49 p.m. EST. NASA’s Solar Dynamics Observatory (SDO), which keeps a constant...

First moments of a solar flare in different wavelengths of light
On Feb. 24, 2014, the sun emitted a significant solar flare, peaking at 7:49 p.m. EST. NASA’s Solar Dynamics Observatory (SDO), which keeps a constant watch on the sun, captured images of the event. These SDO images from 7:25 p.m. EST on Feb. 24 show the first moments of this X-class flare in different wavelengths of light — seen as the bright spot that appears on the left limb of the sun. Hot solar material can be seen hovering above the active region in the sun’s atmosphere, the corona.
Solar flares are powerful bursts of radiation, appearing as giant flashes of light in the SDO images. Harmful radiation from a flare cannot pass through Earth’s atmosphere to physically affect humans on the ground, however — when intense enough — they can disturb the atmosphere in the layer where GPS and communications signals travel.
Image credit: NASA/SDO

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Source: nasa.gov

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humansofnewyork:

“If you could give one piece of advice to a large group of people, what would it be?”
“I’m a retired professor. Every time I’ve spoken to a large group of people, hardly anyone was listening.”

Source: humansofnewyork