NASA’s Solar Dynamics Observatory makes a stunning portrayal of the Sun’s magnetic field

From the cool stuff department and NASA Goddard, comes this. NASA’s Solar Dynamics Observatory (SDO) scientists used their computer models to generate a view of the Sun’s magnetic field on August 10 17, 2018. As seen above. About one year ago the magnetic looked like this, captured on 8/26/17: The bright active region right at…

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The Tale Told by the Heliospheric Tilt Angle

Guest essay by David Archibald Some of the ancients worshipped the Sun as the source of all life. It is much the same today. Most of the energy we use as a civilisation is fossilised solar energy, conveniently provided by Nature as solids and liquids and gasses – whtatever you want. Only the little bit…

Oddly quiet sun: 3 weeks without sunspots

The sun has been blank for 21 straight days–a remarkable 3 weeks without sunspots. This is an almost decade-class event. The last time the sun lost its spots for 21 consecutive days was in the year 2009 coming on the heels of an historic solar minimum. With the current stretch of blank suns, solar minimum…

New paper from Judith Lean estimates Solar Irradiance Since 850 CE

Estimating Solar Irradiance Since 850 CE J. L. Lean Abstract Solar total and spectral irradiance are estimated from 850 to 1610 by regressing cosmogenic irradiance indices against the National Oceanic and Atmospheric Administration Solar Irradiance Climate Data Record after 1610. The new estimates differ from those recommended for use in the Paleoclimate Model Intercomparison Project…

NASA: Sunspots Vanishing Faster than Expected

by Dr. Tony Philips, NASA Spaceweather Sunspots are becoming scarce. Very scarce. So far in 2018 the sun has been blank almost 60% of the time, with whole weeks going by without sunspots. Today’s sun, shown here in an image from NASA’s Solar Dynamics Observatory, is typical of the featureless solar disk: The fact that…

Where Rivers Run North

Guest Post by Willis Eschenbach [See updates at the end] In the continental US, most of the rivers run east, west, or south. But in the Yukon and in Alaska, a number of them run north. The Yukon is a most curious river. The source of the Yukon in Lake Bennett in the Yukon Territory…

Solar Activity Flatlines: Weakest solar cycle in 200 years

By Frank Bosse and Prof. Fritz Vahrenholt, No Tricks Zone In March our supplier of energy was more inactive than in the previous months. The sunspot number was only 2,5, which is only 8% of what is normal for this month into the average cycle (month 112).Only solar cycles 5 and 6 were weaker. A sunspot…