title: The Suess-Urey mission (return of solar matter to Earth).
abstract: The Suess-Urey (S-U) mission has been proposed as a NASA Discovery mission to return samples of matter from the Sun to the Earth for isotopic and chemical analyses in terrestrial laboratories to provide a major improvement in our knowledge of the average chemical and isotopic composition of the solar system. The S-U spacecraft and sample return capsule will be placed in a halo orbit around the L1 Sun-Earth libration point for two years to collect solar wind ions which implant into large passive collectors made of ultra-pure materials. Constant Spacecraft-Sun-Earth geometries enable simple spin stabilized attitude control, simple passive thermal control, and a fixed medium gain antenna. Low data requirements and the safety of a Sun-pointed spinner, result in extremely low mission operations costs.
authors.affiliation: Jet Propulsion Laboratory, USA.
authors.forename: D
authors.initials: D
authors.lastname: Rapp
authors.forename: F
authors.initials: F
authors.lastname: Naderi
authors.forename: M
authors.initials: M
authors.lastname: Neugebauer
authors.forename: D
authors.initials: D
authors.lastname: Sevilla
authors.forename: D
authors.initials: D
authors.lastname: Sweetnam
authors.forename: D
authors.initials: D
authors.lastname: Burnett
authors.forename: R
authors.initials: R
authors.lastname: Wiens
authors.forename: N
authors.initials: N
authors.lastname: Smith
authors.forename: B
authors.initials: B
authors.lastname: Clark
authors.forename: D
authors.initials: D
authors.lastname: McComas
authors.forename: E
authors.initials: E
authors.lastname: Stansbery
mesh_terms: D001256:Astronomy / Q000295:instrumentation*; D003264:Containment of Biohazards; D004602:Elements; D004867:Equipment Design; D005118:Extraterrestrial Environment; D007554:Isotopes; D011834:Radiation Monitoring / Q000295:instrumentation; D012107:Research Design; D016082:Solar System; D013026:Space Flight / Q000295:instrumentation*; D018531:Spacecraft / Q000295:instrumentation*; D013685:Telecommunications
chemical_list: D004602:Elements; D007554:Isotopes