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Submitted on 2002-07-16
Above is a picture from the LASCO C2 coronagraph showing a full halo coronal mass ejection (CME) surrounding the solar disk. This CME left the Sun on July 16 around 16UT. Its origin and direction were puzzling. It was not certain whether the CME was directed straight towards Earth or was directed away from us.
Submitted on 2001-07-23
Although solar activity is generally low these days, beautiful Coronal Mass Ejections can still be seen frequently, such as the one depicted here, which happened on Jul 23. Enjoy the movie from the C2 field of view, made by the LASCO instrument on board the SOHO spacecraft.
Submitted on 2001-05-07
Watch the Sun blast off a streamer type plasma cloud in the corona by shooting a fast CME through it.
Images and movies were made on 6-7 May 2001 by the LASCO instrument on board the SOHO spacecraft.
C2 field of view
Submitted on 2000-10-06
The monthly sunspot index shows a continuous decay since July (Provisional values for July: 169.1, August: 130.5, September: 109.9). Meanwhile, different prediction methods are disagreeing whether the cycle 23 is still rising or not. All this suggest that we are now very near the solar maximum.
Submitted on 2000-09-22
Active region 9169, the largest sunspot in 9 years, is rotating towards the center of the Sun's visible disk. Magnetic fields above the spot have a tangled beta-gamma-delta configuration which is likely to trigger violent activity in the coming days.
The Sun on September 18 (top left), 21, and 24 (large image). Credits: Franky Dubois
Submitted on 2000-09-01
The ACE (Advanced Composition Explorer) satellite detected a steady increase, over a period of roughly one day on the 28th of August, of the solar wind speed from 400 to 600 km/s (yellow curve in plot underneath). This gradual but significant change of the wind speed indicates that the Earth is experiencing the solar wind originating from a different region of the sun, namely a coronal hole.
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