Blog

April 22, 2010

A Coat of Many Colors – The SDO Dynamic Sun

One of the first movies from NASA’s SDO (Solar Dynamics Observatory) Mission this sequence of images gives us a first glimpse at the kinds of science SDO will open up to solar astronomers. On April 8, 2010 the sun produced […]
May 9, 2010

3 Tiny Little Flares: Even Tiny Solar Flares on the Sun are Huge

“Tiny” = 10-20 Earths – On May 8, 2010, the sun produced several relatively small solar flares, C and B-class solar flares on the solar flare scale (much like the earthquake Richter scale). In particular, the sun produced 3 C-class […]
July 15, 2010
Sunspot region NOAA AR9077

Bastille Day Blast! A Celebratory Solar Flare

On July 14 2000, the sun produced a spectacular show! Sunspot region NOAA AR9077 when it was close to sun center let of a BANG!!! It was what one might call a text book space weather event. First came the flash […]
July 28, 2010

Prominence Eruption Seen from Ground and Space

Around 13:00 UTC (8:00 EST) a prominence on the southeast limb of the sun became unstable. The prominence erupted sending an immense amount of solar plasma and magnetic field away from the sun into space. Amateur astronomer David Evans took […]
August 3, 2010

Complex Solar Flare and Filament Eruption Event

On August 1, 2010, the sun produced a complex event, or really a set of events. At approximately 8:55 UT a large filament on the northwest of the sun erupted and at nearly the same time in sunspot active region 11902, […]
August 4, 2010

THEMIS All-Sky White-light Auroral Camera from August 4, 2010

On Feb. 16, 2006 the NASA-led THEMIS (Time History of Events and Macroscale Interactions During Substorms) mission was launched. This fleet of 5 spacecraft was tasked with understanding substorms in the magnetosphere, the power source of the aurora and consequence […]
August 8, 2010

The Sun 2 Weeks With SDO/AIA (July 25 – August 7, 2010)

Here is a 2 week view of the sun as observed by the AIA (Atmospheric Imaging Assembly) instrument aboard the SDO (Solar Dynamics Observatory) spacecraft. This video contains 4 wavelength channels, 304, 171, 193 and 211. First all four wavelengths […]
August 29, 2010

Filament/Prominence Partial Eruption Captured by STEREO Ahead

On August 24th and 25th, the STEREO Ahead spacecraft observed an enormous filament on the southeastern edge of sun expand into a huge prominence. The images were recorded with the Extreme Ultraviolet Imager (EUVI) in the 304 Angstrom wavelength. The […]
September 8, 2010
The Sunspot and Solar Activity Cycle

Solar Activity and the Solar Cycle

The Sun is not just a big bright ball. It has a complicated and changing magnetic field, which forms things like sunspots and active regions. The magnetic field sometimes changes explosively, spitting out clouds of plasma and energetic particles into […]
September 9, 2010

Solar Eruptions with STEREO Ahead

A View of the Active Sun with EUVI, COR1 and COR2 A very busy active region popped off about ten blasts of solar material over a two-day period (Aug. 31- Sept. 2, 2010). With this composited image and movie three […]
September 9, 2010

Solar Active Region’s Farewell Blasts

Just as sunspot group AR11105 rotated out of the Earth’s view it produced a spectacular show. A large prominence erupted along with a C3 solar flare and a Coronal Mass Ejection (CME) blasted away from the sun. This great show […]
September 22, 2010

3D Visualization of a Coronal Mass Ejection

Our good friends and colleagues at Trinity College Dublin have created a 3D visualization of the propagation of a coronal mass ejection (CME). Using multiscale image processing and 3D visualization the team reconstructed the trajectory of an earth-directed CME observed […]