Solar Flares

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Subaru Telescope Observers Superflare Stars with Large Starspots

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A team of astronomers has used the High Dispersion Spectrograph on the Subaru Telescope to conduct spectroscopic observations of Sun-like "superflare" stars first observed and cataloged by the Kepler Space Telescope. The investigations focused on the detailed properties of these stars and confirmed that Sun-like stars with large starspots can experience superflares. The team, made

NuSTAR: The most sensitive solar portrait ever taken in high-energy X-rays.

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For the first time, a mission designed to set its eyes on black holes and other objects far from our solar system has turned its gaze back closer to home, capturing images of our sun. NASA's Nuclear Spectroscopic Telescope Array, or NuSTAR, has taken its first picture of the sun, producing the most sensitive solar

Strong X3.1 solar flare erupted from AR2192 (@Oct. 25)

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Giant sunspot erupts today with 4th substantial flare since Oct 19. Region 2192 has 'beta-gamma-delta' magnetic configuration and is capable of producing more strong to major eruptions on the Sun. Coronagraph data from the Solar and Heliospheric Observatory (SOHO) suggest that the explosion did not hurl a significant CME toward our planet. Interestingly, none of

Moderately strong M5.1 solar flare erupted (@Sept. 28)

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  SDO's AIA 1600 image of M5.1 flare at 02:47 UTC on September 28, 2014. (Credit: Courtesy of NASA/SDO and the AIA, EVE, and HMI science teams)  On Sunday, Sept. 28th @0258 UT, the magnetic canopy of sunspot AR2173 erupted, producing an M5-class solar flare. SDO imagery suggests that a coronal mass ejection

Severe geomagnetic storms expected from X1.6 flare

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Major solar flare X1.6 erupts and sends Earth directed CME! There are currently two Coronal Mass Ejections (CMEs) heading toward our planet and their combined arrival is expected to spark severe geomagnetic storms. The first one, released by the long duration M4.5 solar flare on September 9, is expected to hit Earth's magnetic field early

The Heart-shaped X1.6-class solar flare!

Earth-orbiting satellites have just detected a powerful X1.6-class solar flare (Sept. 10 @ 17:45 UT). The source was active sunspot AR2158, which is directly facing Earth. NASA's Solar Dynamics Observatory recorded the extreme ultraviolet flash. The flare came a bit as a surprise as this region showed magnetic seperation and lost it's delta classification. Sunspot

M6-FLARE | July 8, 2014

Emerging sunspot AR2113 showed that it is capable of strong flares with an M6-class eruption at 1630 UT on July 8th. NASA's Solar Dynamics Observatory recorded the extreme ultraviolet flash. Ionizing radiation from the flare briefly disturbed the propagation of shortwave radio transmissions on the dayside of Earth, but conditions have since returned to normal.