U. S. Mission launched in August, 2001 to observe and collect solar wind samples and return them to Earth. Sample collections were obtained at the L1 point, approximately one million miles from Earth where the gravities of Earth and Sun are balanced. The sample capsule landed back on Earth in September, 2004 in an unexpected crash after its deceleration sensor failed and the parachutes did not open. Nevertheless, solar wind samples were recovered, cleaned, and stored successfully and are now being studied meticulously. Genesis Mission webpage.