June 29, 2022

Latest Updates About Solar Activity

[Alex on EARTHSKY.ORG] What's happening on the Sun this week? Find out about our current space weather & what we can expect here on Earth. (Image: NASA/SDO)
June 20, 2022

Sun Activity: Week of June 20, 2022

[Alex on EARTHSKY.ORG] Some C-class flares, prominences, minor geomagnetic storm, and a beautiful CME. (Image: ESA Proba2 /
June 13, 2022

Sun Activity: Week of June 13, 2022

[Alex on EARTHSKY.ORG] 6-13: Sun activity has picked up • 6/14: CME glancing blow tomorrow and possible auroras • 6/15: The CME is here • 6/16: Heliophysics Big Year ahead • 6/17: Sunspot AR3031 promises action • 6/18: Sunspot AR3030 main player • 6/19: Sun activity low with a bit of solar wind (Image: NASA/Helioviewer)
June 6, 2022

Sun Activity: Week of June 6, 2022

[Alex on EARTHSKY.ORG] The sun has been relatively quiet from June 2 - 10, slightly more than a week. Notable was an M1.2 but mostly just C and B flares. Minor non-Earth-directed CMEs and many dancing filaments. (Image: NASA/SDO)
May 30, 2022

Sun Activity: Week of May 30, 2022

[Alex on EARTHSKY.ORG] Parker Solar Probe hits a milestone. A mixed-up sunspot. Double filaments with double CMEs. (Image: NASA/SDO)
May 23, 2022

Sun Activity: Week of May 23, 2022

[Alex on EARTHSKY.ORG] Filament eruptions, coronal holes, a few flares of note, and more! (Image: NASA/SOHO)
May 16, 2022

Sun Activity: Week of May 16, 2022

[Alex on EARTHSKY.ORG] Recap of flares, filament eruptions, coronal holes, and more! (Image: NOAA)
May 9, 2022

Sun Activity: Week of May 9, 2022

[Alex on EARTHSKY.ORG] 5/9: low sun activity; 5/10: X-flare from AR3006; 5/11: Rare magnetic crochet and CMEs; 5/12: Moderate, possible glancing CME; 5/13: Sun activity moderate; 5/14: Possible glancing CME; 5/15: Beautiful prominence eruption (Image: NOAA)
May 3, 2022

Why are East & West on the Sun Reversed?

[Alex on EARTHSKY.ORG] East and west on the sun are opposite from what you might expect. On the sun, east is to the left and west is to the right. Learn why here. (Image: NASA/SDO)
May 2, 2022

A Grand Solar Minimum? Or a Normal Sun?

[Alex on EARTHSKY.ORG] A Grand Solar Minimum happens when the peaks of several solar cycles in a row show less than average intensity. Are we in one? (Image: NOAA)
May 1, 2022

What Does the Sun’s X-Ray Flux Tell Us?

[Alex on EARTHSKY.ORG] Solar physicists often speak of the sun's X-ray flux as being high, or low. Solar flares are like waves on the background ocean of the sun's X-ray flux.
March 27, 2022

Sun Activity: A CME Headed Our Way

[Alex on EARTHSKY.ORG] NASA estimates the CME will impact Earth late on March 27, 2022, or early on March 28. Activity at Earth is expected to be minor. Image via NASA SDO - The Sun on March 28, 2022 at 1:45 UTC.
March 26, 2022

Solar Filaments, aka Prominences, Arc Upwards

[Alex on EARTHSKY.ORG] Solar filaments (aka prominences, when viewed on the limb of the sun) are large, bright arcs of solar material and magnetic fields.
March 24, 2022

Aurora Season: Why More Auroras at Equinoxes?

[Alex on EARTHSKY.ORG] This pattern in nature – auroras increasing twice a year – is one of the earliest patterns ever to be observed and recorded by scientists.
March 19, 2022

Sun activity: Possible CME Sideswipe Weekend of March 18

[Alex on EARTHSKY.ORG] Sun activity for March 19, 2022. As you can see from the image, most of the activity right now is occurring on the limbs of the sun, as seen from Earth’s perspective. Image via NASA SDO.
March 14, 2022

Sunspot Region AR2965, M2 Solar Flare & Glorious Auroras

[Alex on EARTHSKY.ORG] Lots of fun with the Sun lately. A coronal mass ejection slammed into Earth and gave weekend aurora. Then the Sun fired off a moderate solar flare.
January 31, 2022

Big sunspot region AR2936 has blasted a CME toward Earth

[Alex on EARTHSKY.ORG] The large sunspot region AR2936 – which quadrupled in size this past weekend – released an Earth-directed coronal mass ejection (CME) on January 30, 2022.
December 21, 2021

Aurora Alert for December 23, After M-class Flares

[Alex on EARTHSKY.ORG] There’s been a small uptick in solar activity over the past two days (December 20 and 21, 2021). The increase comes from the fact that nine sunspot groups (active regions or AR) now pepper the visible face of the sun.
November 4, 2021

Aurora Alert! CME Impacting Earth Arriving November 4, 2021

[Alex on EARTHSKY.ORG] Aurora alert in effect for the next few days: the sun sent out a halo coronal mass ejection on November 2, 2021, due to arrive at Earth on November 4.
October 30, 2021

Solar Storm and Aurora Starting Tonight 10.30.2021

[Alex on EARTHSKY.ORG] A solar storm after an eruption on the sun is carrying plasma toward Earth, which should produce northern and southern lights this weekend.
September 1, 2021

Aurora Alert! Pair of CMEs to Jolt Earth’s Magnetic Field

[Alex on EARTHSKY.ORG] Aurora alert! A pair of coronal mass ejections will reach Earth September 1-2, 2021. Though not dangerous to satellites or the grid, they might cause auroras.