A secret behind the workings of sunquakes – seismic activity on the Sun during solar flares – might be hidden beneath the solar surface.
Tag: Solar flare
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.…
NASA sun data helps new model predict big solar flares
Using data from NASA’s Solar Dynamics Observatory, or SDO, scientists have developed a new model that successfully predicted seven of the Sun’s biggest flares from the last solar cycle, out…
Monster solar storm that hit Earth discovered in the past
Something this big today would surely fry electrical grids, GPS, and communications. It may be bigger than the Carrington Solar event of 1859. Scientists have found evidence of a huge…
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…
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.…
Solar cycle 24 continues weakly, perhaps weakest of the space-age
NOAA SWPC has updated their plot page of solar metrics, and the slump continues. At spaceweather.com Dr. Tony Phillips writes: SO THIS IS SOLAR MAXIMUM? Forecasters have long expected the…
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…
A quiet cue ball sun
Source: http://sdo.gsfc.nasa.gov/assets/img/latest/latest_4096_4500.jpg A couple of people have noticed (as did I) that the sun is essentially blank.
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…
Solar cycle update for April – sun still slumping
Got a bit sidetracked earlier in the month, this is overdue for an update. Earlier we reported that Hathaway had updated his solar cycle prediction saying “…the predicted size makes…
"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…
Geomagnetic data reveal unusual nature of recent solar minimum
From the American Geophysical Union weekly highlights: Key Points Minimum 23-24 showed recurrence intervals of 9.0 and 6.7-d Historical geomagnetic activity data show that minimum 23-24 was unusual The heliosphere…
Recent solar flare seen bombarding Earth with gamma rays
From the “Oh noes it’s Radiation” department, Dr. Leif Svalgaard points out we all got a gamma ray bath on that recent big solar flare. I wonder how many Banana…
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;…
Homeland Security takes on The Carrington Event
While we worry about future threats like global warming, and present threats like Iran’s escalating nuclear program, the sun’s propensity for belching out monstrous solar flares (like the Carrington event…
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…
Solar cycle update: sunspots down, Ap index way down
The NOAA SWPC monthly solar cycle update has been published here, and after a big spike last month, the sunspot count is down again. There’s an even bigger drop though…
Solar-Terrestrial Power Update
By Paul L. Vaughan, M.Sc. The amplitude of Earth’s zonal winds is modulated by the solar cycle. Here’s a concise visual update based on the latest data: LOD’ = rate…
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…
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