Scientists tackle a burning question: When will our quiet sun turn violent?

From Science Mag A violent, active sun, as seen in ultraviolet light in October 2014—near solar maximum in its 11-year solar cycle. As the sun approaches solar minimum, scientists are trying to predict the timing and strength of the next solar maximum. NASA/SDO/LMSAL By Sarah ScolesMay. 30, 2019 , 2:00 PM BOULDER, COLORADO—For all of…

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Three solar storms headed for Earth

NOAA forecasters say there is a 55% to 60% chance of geomagnetic storms on May 15th and 16th when a series of coronal mass ejections (CMEs) could hit Earth’s magnetic field. Storm levels are expected to range between category G1 and G2. This means auroras could be sighted in northern-tier US states such as Montana,…

Evidence of the 11 year Solar Cycle in the Stratosphere

This is not a novel result, for example: https://wattsupwiththat.com/2018/03/30/tools-to-spot-the-spots/ Nevertheless, this is a solid analysis and exercise in citizen science.~ctm By: Leron Wells During my early teenage years as an avid fan of the Space Program I was patiently waiting for NASA to get the Shuttle flying so hopefully they could boost Skylab from its…

Unexpected rain on sun links two solar mysteries

NASA/Goddard Space Flight Center For five months in mid 2017, Emily Mason did the same thing every day. Arriving to her office at NASA’s Goddard Space Flight Center in Greenbelt, Maryland, she sat at her desk, opened up her computer, and stared at images of the Sun — all day, every day. “I probably looked…

Huge new sunspot may hurl flares towards Earth

Sunspot AR2736, which hurled a Coronal Mass Ejection toward Earth yesterday, is growing larger and crackling with C-class solar flares. The active region now sprawls across more than 100,000 km of the solar disk and contains multiple dark cores as large as Earth, making it one of the biggest sunspots in recent years. Two days…

Declining Solar Activity

BOB HOYE In the 1990s, solar physicists, Penn and Livingston, called for a long decline in solar activity. This is the case and it is nice to see such work confirmed by events. Solar Cycles # 23 and 24 are the weakest since the early 1900s. The current run of consecutive Spotless Days is out…

Amid the dimmest Sun since 1978 – a month without sunspots

The sun today is cue-ball blank, a perfect unmarred sphere: The sun has just passed an entire calendar month with no sunspots. The last time this happened, in August 2008, the sun was in the nadir of a century-class Solar Minimum. The current stretch of blank suns shows that Solar Minimum has returned, and it…

Sunspots: Labitzke Meets Bonferroni

Guest Post by Willis Eschenbach In a previous thread here on WUWT, a commenter said that the sunspot-related variations in solar output were shown by Labitzke et al. to affect the stratospheric temperature over the North Pole, viz: Karin Labitzke cracked that nut. She was the first one to find a correlation between not one…