Solar News Highlights from 2003

12/08/03 EXTENSIVE DESTRUCTION POWERS SOLAR EXPLOSIONS - Large-scale destruction of magnetic fields in the sun's atmosphere likely powers enormous solar explosions, according to a new observation from NASA's Ramaty High Energy Solar Spectroscopic Imager (RHESSI) spacecraft.

For the NASA press release see:
10/15/03 The UC Berkeley Newspaper Berkeleyan has an article about RHESSI's first observations of gamma-rays from a Solar Flare in a flare event on July 23rd, 2002. The article can be found at:
10/14/03 In a special Fall 2003 issue of Scientific American titled New Light on the Solar System there is an article about the Solar Corona which makes mention of RHESSI: The Paradox of the Sun's Hot Corona. If you are accessing the internet from a library or educational institution you can read this article at the Scientific American online archive.
09/02/03 RHESSI's recent observations of gamma rays provide new insights into particle acceleration and antimatter creation in Solar Flares. See the following articles for more information:
07/21/03 The Sun's big, bright, explosive flares are the attention grabbers, but tiny, more numerous microflares may have nearly as much influence on the solar atmosphere, according to new data from the University of California, Berkeley's RHESSI satellite.

See the full story at :
or at UC Berkeley News:
Or a similar story from India's National Newspaper, The Hindu:
Sun's micro flares play major role in heating corona

05/28/03 In December of 2002, RHESSI caught a serendipitous glimpse of a gamma ray burst, while observing the Sun. Gamma Ray bursts are thought to be the most energetic explosions in the Universe resulting from an extremely violent supernova death of a star. RHESSI's unique observation of the gamma ray burst has reveled some surprising new results in the study of these mysterious explosions.

Read more about it here:

01/01/03 New RHESSI Lithograph -

A new RHESSI lithograph contains the RHESSI mission profile, as well as a classroom activity titled Discover the Solar Cycle.
HTML version  PDF version


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