Which way does the solar wind blow?

“No doubt, in years to come, the quality of data from the photosphere and solar corona will be improved dramatically, both because of new data available and new, more sophisticated…

Leif Svalgaard at AGU on the Current Solar Cycle: ‘None of us alive have ever seen such a weak cycle’

WUWT’s resident solar expert Dr. Leif Svalgaard (and others) says  ‘None of us alive have ever seen such a weak cycle’  and the panel he was on talk about the…

Sunspot group AR1890 takes direct aim at earth

May produce a dangerous X-class flare that could directly impact Earth Steve Davidson writes: Right now, today, one of the largest sunspot groups of Cycle 24 – AR1890 – is…

About that almost 'Carrington Event' two weeks ago

Lots of people talking about this article in the UK daily Mail: A near miss for Earth: Solar flare that could have knocked out power, cars and phones came so…

Sun produces four X-class flares in two days

Above: note the four separate events in the last two days – from the WUWT Solar Page (From NASA’s Spaceweather.com) When the week began, the sun hadn’t unleashed an X-flare…

A misinterpreted claim about a NASA press release, CO2, solar flares, and the thermosphere is making the rounds

I loathe having to write this story because I truly dislike giving any attention to the people who are known as the “slayers” from the “Slaying the Sky Dragon” book.…

Modeling the Riddle of the Sun's Explosive CME's

DURHAM, N.H. — Four decades of active research and debate by the solar physics community have failed to bring consensus on what drives the sun’s powerful coronal mass ejections (CMEs)…

Looking into solar coronal prominence cavities

by Karen C. Fox NASA Goddard Space Flight Center, Greenbelt, MD › View larger Scientists want to understand what causes giant explosions in the sun’s atmosphere, the corona, such as…

Still waiting for the CME from the X Class flare

Spaceweather.com writes: (link mine) The CME launched toward Earth by the July 12th X-flare has not yet arrived. However, we are still within the forecast window set by analysts at…

X-Class solar flare blasts CME directly at Earth

Large sunspot Group AR1520, seen below just right of center, was pointed directly at Earth when the flare occurred. The GOES Xray Flux spike hit X 1.4, just barely an…

Sunspot AR1476 takes aim on Earth

From Spaceweather.com NOAA forecasters estimate a 75% chance of M-class solar flares and a 20% chance of X-flares during the next 24 hours. Any eruptions are likely to be geoeffective…

"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:…

Potential for large solar flares and CME's may be with us again soon

Readers may recall my reports on the CME’s from massive sunspot group 1429, seen below. It seems the sunspot group continues to live, and has unleashed another massive Coronal Mass…

Whole lotta watts added to the atmosphere

I loved the way James Russell described CO2 molecules as “natural thermostats” Solar Storm Dumps Gigawatts into Earth’s Upper Atmosphere A recent flurry of eruptions on the sun did more…

Solar storm continues, geomagnetic storm and auroras expected

We have about three hours to go for the expected arrival time of the CME at 0625 UTC/1025 PM PST. Proton flux remains high as do other indicators. Additionally another…

NOAA: Strong Solar Eruption; Earth-Directed CME Likely

An X-5 class solar flare just occurred from region 1429, the large active sunspot group seen below. NOAA Bulletin from the Space Weather Prediction Center: 2012-03-07 01:03   Strong Solar Eruption;…

Biggest solar storm since 2005

It is being called by WaPo “The Biggest solar storm since 2005“. The sun erupted late on January 22nd, 2012 with an M8.7 class flare. The Solar Dynamics Observatory captured…

Big CME headed toward Earth

From Spaceweather.com : Active sunspot 1401 erupted yesterday, Jan. 19th around 16:30 UT, producing an M3-class solar flare and a full-halo coronal mass ejection (CME). The Solar and Heliospheric Observatory…

Big CME hits earth, low latitude auroras possible

From the Rice University Spaceweather listserv Our space weather alert system is in level yellow, and the CME input of energy to the Earth’s magnetosphere still continues. So, if you…

Geomagnetic solar storm in progress

Spaceweather.com reports: A strong-to-severe geomagnetic storm is in progress following the impact of a coronal mass ejection (CME) at approximately 12:15 UT on Sept. 26th.

Solar activity on the upswing, big sunspot rotating into view is producing x-class solar flares. Large CME expected soon, may hit earth.

From Spaceweather.com: New sunspot 1302 has already produced two X-flares(X1.4 on Sept. 22nd and X1.9 on Sept. 24th), can another be far behind? NOAA forecasters put the 24-hour probability at…

SDO sees 'Dark Fireworks' on the Sun

From Science@ NASA:  On June 7, 2011, Earth-orbiting satellites detected a flash of X-rays coming from the western edge of the solar disk. Registering only “M” (for medium) on the…

Sol is finally waking up

Let’s hope he does get out of the wrong side of the bed. The current sunspot count and 10.7 cm radio flux have increased in the latest NOAA SWPC graphs,…

Solar news: Forbush decrease in progress

The definition at Wikipedia: A Forbush decrease is a rapid decrease in the observed galactic cosmic ray intensity following a coronal mass ejection (CME). It occurs due to the magnetic…