News & CommentSolar Physics

Ulysses Laps Sun, Inspires New Missions

See allHide authors and affiliations

Science  01 May 1998:
Vol. 280, Issue 5364, pp. 668
DOI: 10.1126/science.280.5364.668

You are currently viewing the summary.

View Full Text

Log in to view the full text

Log in through your institution

Log in through your institution


Last month the European-built Ulysses spacecraft finished its first complete orbit of the sun, a 7-year reconnaissance of particles and magnetic fields high over the sun's north and south poles. Now researchers are hoping to extend Ulysses's operations into a second orbit, and they are proposing a flotilla of other missions, including one probe that would venture to within two solar diameters of the sun's surface. All are aimed at observing peaks in the 11-year cycle of solar activity, the next of which is due early next century.