... Tonight's Sky . ... SUN MOON MERCURY VENUS MARS, JUPITER SATURN . Sun . ... Observing . ... solar system . ... Get to Know the Night Sky . ... SOHO gets extension . ... This mission extension will allow SOHO to cement its position as the most important spacecraft in the history of solar physics," says Bernhard Fleck, SOHO's project scientist, "There is a lot of valuable work for this spacecraft still to do." ... Only registered members of Astronomy.com are allowed to comment on this article. ...