Half of earth at the bottom, three satellites are above the earth, one in the middle, 2 to the sides. A smaller circle, the , is at the top A rocket against a dark background blasting off, creates a bright white-ish yellow flames at the bottom at the middle with orbits around it. Earth is shown as the third orbit with two smaller objects around earth.

Welcome to a public education website for some of the NASA instruments studying solar wind (stream of particles coming from the Sun).

Latest News:

September 9, 2010 Sunspot 1105 unleashed a spectacular eruption of plasma and extreme ultraviolet radiation. Earth was not in the line of fire.

September 5, 2010 At around 1600 UT, a magnetic filament erupted and hurled a massive coronal mass ejection (CME) off the Sun's northwestern limb. This CMS however, is not expected to hit Earth

August 20, 2010 With solar activity on the rise, August 2010 has been a good month for auroras. There have been sightings of Northern Lights as far south as Wisconsin and Iowa in the United States, and some fine displays of Southern Lights over Antarctica.

March 12, 2010 NASA solar physicist David Hathaway reports that the top of the sun's Great Conveyor Belt has been running at record-high speeds for the past five years.

Last updated 09/21/2010 © UC Regents