Shaping a Spiral Galaxy

The magnetic fields align along the entire length of the massive spiral arms — 24,000 light years across (0.8 kiloparsecs) — implying that the gravitational forces that created the galaxy’s…

Uncovering the Mystery of Auroral Beads

A special type of aurora, draped east-west across the night sky like a glowing pearl necklace, is helping scientists better understand the science of auroras and their powerful drivers out…

New paper suggests the sun's magnetic fields defines climate over the long term

Story submitted by Cornelis de Jager (past president ICSU;past pres. COSPAR) In a recent publication entitled Terrestrial ground temperature variation in relation to solar magnetic variability, including the present Schwabe…

September doldrums – solar slump continues

While many science related government agencies are shut down (NASA GISS is deemed ‘non-essential’ for example) some remain open due to statements like this: Due to the Federal Government shutdown,…

The sun is about to have a flipping magnetic field reversal

We’ve been watching the progress on the WUWT solar reference page in this plot from Dr. Leif Svalgaard: Solar Polar Fields – Mt. Wilson and Wilcox Combined -1966 to Present…

"firecracker" sunspot turning towards earth – possible large solar flares

Sunspot AR1476 may have some surprises for us in the coming days, and I hope it isn’t a Carrington type event. It has already launched two CME’s yesterday. From NASA’s Spaceweather.com:…

NASA JPL on New Insights on How Solar Minimums Affect Earth

This is the first of what I’m sure will be a series of solar stories related to the stunning (at least to people who have not been following WUWT since…

First measurement of magnetic field in Earth's core

Earth’s internal dynamo generates average field in outer core 50 times that at surface A University of California, Berkeley, geophysicist has made the first-ever measurement of the strength of the…