Major, long-duration X1.1 solar flare produces Earth-directed CME

Major, long-duration X1.1 solar flare produces Earth-directed CME

A major, long-duration solar flare measuring X1.1 erupted from Active Region 3614 at 01:33 UTC on March 23, 2024. The event started at 00:58 and ended at 02:21 UTC. A halo CME was produced, with impacts to Earth likely late March 25 or early March 26.

S2 – Moderate solar radiation storm following M6.7 solar flare

S2 – Moderate solar radiation storm following M6.7 solar flare

Following the M6.7 solar flare from Active Region 3559 on January 29, 2024, enhanced proton levels were recorded, with the greater than 10 MeV reaching the S2 – Moderate threshold and greater than 100 MeV peaking at 0.67 pfu.

Major solar flares erupting behind the northeast limb

Major solar flares erupting behind the northeast limb

A major solar flare was detected behind Sun's northeast limb on September 1, 2014. STEREO Behind spacecraft, watching farside of the Sun, captured what is most likely an X-class solar flare starting at 11:05 UTC.This major solar flare was associa

Subsiding geomagnetic and solar radiation storms

Subsiding geomagnetic and solar radiation storms

Geomagnetic storm sparked by a combination of CMEs from last couple of days is now subsiding. We might still see uptick today but it will most likely remain below G1 levels.At 10:57 UTC on April 20, a 24 nT geomagnetic sudden impulse (interplanet