Friday, February 7, 2025

It Turns Out Those Powerful May '24 Solar Storms Caused Relatively Long-Lasting Changes -- At The Van Allen Belt, Here... Whoah.


We mention all of this about every four months -- even in non-Solar Max years.

Today's NASA dispatch brings us the news that the discovery of these new "mini-belts" was made possible by NASA’s Colorado Inner Radiation Belt Experiment (CIRBE) satellite and published Feb. 6, 2025, in the Journal of Geophysical Research: Space Physics. This is particularly important for protecting spacecrafts launching into geostationary orbits, since they travel through the Van Allen Belts several times -- before reaching their final orbits. Here's the story, in full:

. . .The largest solar storm in two decades hit Earth in May 2024. For several days, wave after wave of high-energy charged particles from the Sun rocked the planet. Brilliant auroras engulfed the skies, and some GPS communications were temporarily disrupted.

With the help of a serendipitously resurrected small NASA satellite, scientists have discovered that this storm also created two new temporary belts of energetic particles encircling Earth. The findings are important to understanding how future solar storms could impact our technology.

The new belts formed between two others that permanently surround Earth called the Van Allen Belts. Shaped like concentric rings high above Earth’s equator, these permanent belts are composed of a mix of high-energy electrons and protons that are trapped in place by Earth’s magnetic field. The energetic particles in these belts can damage spacecraft and imperil astronauts who pass through them, so understanding their dynamics is key to safe spaceflight. . . .


Okay -- when you look up in the bright morning sunshine. . . and feel its warmth remember that we live in a precarious balance, for billions and billions of years on end here. We are exceedingly lucky, to be here -- at all.

Me? I try to remain mindful that a single misfire, of sufficient size. . . could sterilize all life on our planet, in under seven minutes' time. Nah, it won't happen for another two billion years or so. . . but it could.

नमस्ते

No comments: