Genesis
Artist's conception of the Genesis spacecraft in collection mode, opened up to collect and store samples of solar wind.
Genesis
United States spacecraft
Genesis, U.S. spacecraft that returned particles of the solar wind to Earth in 2004. Genesis was launched on Aug. 8, 2001. The spacecraft spent 884 days orbiting the first Lagrangian point, 1.5 million km (930,000 miles) from Earth, and capturing 10β20 micrograms of solar wind particles on ultrapure collector arrays. The intent was to determine directly the composition of the Sun in order to provide more certain results than those obtained by means of spectral...