• Kp5 geomagnetic storm in progress!!!

    The solar wind is at elevated levels and this may stir up minor activity at very high latitudes.Solar windspeed: 622.5 km/secdensity: 3.8 protons/cm3Planetary K-indexNow: Kp= 5 storm24-hr max: Kp= 5 stormInterplanetary Mag.

  • Solar tsunami and dark fireworks on the Sun

    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 Richter scale of solar flares, the blast at first appeared to be a run-of-the-mill eruption- that is, until

  • Behemoth sunspots evolve

    The CME was not squarely Earth-directed and is not traveling at great speed, only minor geomagnetic storming is expected when the cloud arrives. A coronal mass ejection (CME) that billowed away from sunspot 1247 on July 9th could hit Earth's magnetic field on…

  • Incoming Coronal Mass Ejection (CME)

    During the early hours of July 9th, a Coronal Mass Ejection (CME) billowed away from new sunspot 1247. A preliminary analysis of data from NASA's twin STEREO-A and -B spacecraft suggests that the flank of the CME could hit Earth's magnetic field sometime on July

  • Sun produced a series of strong shortwave radio bursts

    On July 7th, the sun produced a series of strong shortwave radio bursts. Click on the dynamic spectrum below to play a 21 MHz sample recorded by amateur radio astronomer Thomas Ashcraft in rural New Mexico. The action begins about 18 seconds into the 2-minute…

  • Sundiving comet

    During the late hours of July 5th, an unnamed icy comet from the outer solar system dove into the sun and disintegrated. Click on the arrow to witness the death plunge recorded by coronagraphs onboard the Solar and Heliospheric Observatory (SOHO):Over the years,