Group Sunspot Numbers: A New Reconstruction of Sunspot Activity Variations from Historical Sunspot Records Using Algorithms from Machine Learning

Indeed we think that this paper is very important on various fronts, including even the rather clear and revisionist attempts by several activists during the last 10 years or more…

Solar Variations Controversy

The impact of solar variations on the climate is uncertain and subject to substantial debate. However, you would not infer from the IPCC assessment reports that there is debate or…

Leif Svalgaard Responds to Willie Soon

To my eye there is no difference between our reconstruction and theirs [based on Machine Learning], except that we have error bars and they don’t. It is amazing how people’s…

Studying the Role of the Sun on Climate

Willie Soon, astrophysicist and aerospace engineer takes the stage at the 14th International Conference on Climate Change to discuss the role of the sun on climate change.

How the Sun Controls Arctic Ice and Temperatures part 3

Part 3 on controls on Arctic sea ice. Although sunspot cycles do not add enough energy to explain the Arctic’s warming, the sun and sunspot cycles do explain redistribution of…

Solar Update September, 2021

This figure also shows a flat trend through the 1970s cooling period followed by a 40 year long downtrend in activity. Whatever solar processes caused the Modern Warm Period and…

Challenging UN, Study Finds Sun—not CO2—May Be Behind Global Warming

Climate scientist Dr. Ronan Connolly, Dr. Willie Soon and 21 other scientists claim the conclusions of the latest “code red” IPCC climate report are strongly dependent on the authors’ narrow…

Can we predict long-term solar variability?

This post is a result of an online conversation with Dr. Leif Svalgaard, a research physicist at Stanford University. Leif knows a great deal about the Sun and solar variability…

A New Space Instrument Captures Its First Solar Eruption

Solar Orbiter has already taken the closest picture of the Sun to date, and it will only get closer. Solar Orbiter’s official mission begins in November, when SoloHI and the…

Scientists use AI to predict sunspot cycles

For the first time, scientists have used artificial intelligence not only to predict sunspots but also to correct the incomplete record of past sunspot activity.

New study ties solar variability to the onset of decadal La Nina events

The paper does not delve into what physical connection between the Sun and Earth could be responsible for the correlation, but the authors note that there are several possibilities that…

No Mention Of CO2: New Study Shows African Climate Variability Strongly Linked To Natural Cycles

A new study analyzes patterns of natural rainfall variability and can provide crucial assistance to African countries in seasonal rainfall forecasting for agriculture and protection against droughts & heavy rains.

Observations Around Solar System With Parker Solar Probe’s 7th Solar Encounter

During Parker Solar Probe’s seventh swing by the Sun, culminating in its closest solar approach, or perihelion, on Jan. 17, 2021, celestial geometry posed a special opportunity. The configuration of…

NASA Missions Make Unprecedented Map of Sun’s Magnetic Field

A major goal of heliophysics – the science of the Sun’s influence on space, including planetary atmospheres – is to predict space weather, which often begins on the Sun but…

Exploring the Solar Wind With A New View of Small Sun Structures

Scientists have combined NASA data and cutting-edge image processing to gain new insight into the solar structures that create the Sun’s flow of high-speed solar wind, detailed in new research…

Secrets Behind Sunquakes Could Lurk Beneath the Solar Surface

A secret behind the workings of sunquakes – seismic activity on the Sun during solar flares – might be hidden beneath the solar surface.

Huge sunspot may launch solar flares toward Earth in the next two weeks

One of the biggest sunspots in years is emerging on the sun today. Hours ago it produced a C-class solar flare and a minor radio blackout over the Indian Ocean.…

The role of the Sun in the spread of viral respiratory diseases

Why do most viral epidemics spread cyclically in autumn and winter in the globe’s temperate regions? According to an interdisciplinary team of researchers of the Italian National Institute for Astrophysics,…

A new look at sunspots

NASA’s extensive fleet of spacecraft allows scientists to study the Sun extremely close-up – one of the agency’s spacecraft is even on its way to fly through the Sun’s outer…

The dimmest state of the Sun: TSI and Global warming

This new paper raises some questions about the role of total solar irradiance (TSI) and global warming. OTOH hand its all computer modeling, so take it with a grain of…

New prediction of Solar Cycle 25

Prediction of Solar Cycle 25 Leif Svalgaard1* 1W.W. Hansen Experimental Physics Laboratory, Stanford University Cypress Hall, C3, 466 Via Ortega, Stanford, CA 94305-4085 *Corresponding author: Leif Svalgaard (leif@leif.org) ABSTRACT Prediction…

New Solar Orbiter data reveals the sun at its quietest

Three of the Solar Orbiter spacecraft’s instruments, including Imperial’s magnetometer, have released their first data. The European Space Agency’s Solar Orbiter spacecraft launched in February 2020 on its mission to study to…

A New Cold Record set at International Falls: Should we be surprised?

News has come from the Duluth office of the National Weather Service that both International Falls & Hibbing broke their records for low temperatures on the morning of September 17.…

Solar Cycle 25 has officially begun

Solar Cycle 25 is officially underway. NASA and NOAA made the announcement during a media teleconference earlier today. According to an international panel of experts, sunspot counts hit rock bottom…