Between the expected Russian invasion of Ukraine and storms on the Sun, this could be an exciting week. Oh, you hadn’t heard of the latter? Here’s Spaceweather.com:
HERE IT COMES: The source of last week’s huge farside explosion is moving closer to the Earthside of the sun. NASA’s STEREO-A spacecraft is stationed just behind the sun’s eastern limb, and it has caught sight of a large ultraviolet hotspot approaching the visible edge of the solar disk:
STEREO-A does not have a white light telescope, so we cannot know for sure that the “hotspot” is actually a sunspot. But it almost certainly is.
Whatever it is, it’s big enough to affect the way the surface of the sun vibrates. Researchers at Stanford University are using helioseismology to map the farside of the sun.
And
The northeastern limb of the sun is surging with flares …
Go read about it. One big blast could knock down satellites and even disable our power grid.
