Archives par mot-clé : Sunspots


by Cap Allon, Apr 30, 2021 in Electroverse

GALACTIC Cosmic Rays are a mixture of high-energy photons and sub-atomic particles accelerated toward Earth by supernova explosions and other violent events in the cosmos, while SOLAR Cosmic Rays are effectively the same, only their source is the Sun. and the students of Earth to Sky Calculus have been launching cosmic ray balloons almost weekly since March 2015–before the pandemic threw a spanner in. The team’s published results reveal that atmospheric radiation reached record highs just as solar activity hit a new space age low — the correlation is clear for all to see, with additional proxy data revealing it has been the case for time-immemorial.

During solar minimums –the low point of the 11 year solar cycle– the Sun’s magnetic field weakens and the outward pressure of the solar wind decreases. This allows more cosmic rays (CRs) to penetrate the inner solar system, including our planet’s atmosphere:

Cosmic Rays correlating with Sunspots.

A Month Without Sunspots

by Dr Tony Phillips, March 6, 2019 in SpaceWeatherArchive

March 1, 2019: There are 28 days in February. This year, all 28 of them were spotless. The sun had no sunspots for the entire month of Feb. 2019. This is how the solar disk looked every day:

How does this affect us on Earth? The biggest change may be cosmic rays. High energy particles from deep space penetrate the inner solar system with greater ease during periods of low solar activity. Indeed, NASA spacecraft and space weather balloons are detecting just such an increase in radiation. Cosmic rays can alter the flow of electricity through Earth’s atmosphere, trigger lightning, potentially alter cloud cover, and dose commercial air travelers with extra “rads on a plane.”

As February ended, March is beginning … with no sunspots. Welcome to Solar Minimum!