title: Astronomy: Exoplanets on the cheap.
authors.forename: Lee
authors.initials: L
authors.lastname: Billings
mesh_terms: D001256:Astronomy / Q000191:economics* / Q000295:instrumentation / Q000379:methods* / Q000639:trends; D001272:Atmosphere / Q000737:chemistry; D018534:Earth, Planet; D018559:Exobiology / Q000191:economics / Q000295:instrumentation / Q000379:methods / Q000639:trends; D005118:Extraterrestrial Environment / Q000737:chemistry; D016083:Planets; D055609:Stars, Celestial; D014481:United States; D018557:United States National Aeronautics and Space Administration / Q000191:economics