+ NASA Homepage + NASA en Español TPF SIM Keck LBTI Kepler Spitzer INTERSTELLAR TRIP PLANNER   Automobile 60 mph Bullet train 180 mph Boeing 757 600 mph Voyager 17 km/second 10.5 miles/sec Starship light-speed (186,282 miles per second) Moon Distance: 220,968 miles 22 weeks 7 weeks, 2 days 19 days 5 hours, 50 minutes 1.2 seconds Mars Distance: (minimum) 33.8 million miles 54.5 million km 65 years 21.7 years 6.5 years 37 days 3 minutes Saturn Distance: (minimum) 741.2 million miles 1,195.5 million km 1,410 years 470 years 141 years 2 years, 3 months 1 hour, 6 minutes Proxima Centauri (closest star) Distance: 4.28 light-years 25 trillion miles 40 trillion km 50 million years 16.7 million years 5 million years 76,000 years 4.28 years Epsilon Andromedae (closest planetary system) Distance: 10.3 light-years 110 million years 36.7 million years 11 million years 180,000 years 10.3 years Click here for Flash version Copyright Glossary Feedback Site Map Awards & Credits Curator: Randal Jackson Webmaster: Cecelia Lawshe

Extrasolar planets. Exo-planets. Searching for extrasolar planets. Searching for exo-planets. Earth-like planets in the Milky Way. Exoplanets and extra-solar planets, or exoplanets and extra-solar planets. Planets around others stars are called extrasolar planets. What is an extrasolar planet? Astronomy, or astronomy and finding planets.