Exploration
In situ exploration by spacecraft includes Pioneer 10, Pioneer 11, Voyager 1, Voyager 2, Ulysses, Galileo, Cassini–Huygens, and New Horizons. Planned missions include Juno Jupiter Orbiter and possibly the Outer Planet Flagship Missions; there are various proposals too, such as Uranus orbiter and probe. Ongoing missions for the outer planets as of 2011 include Cassini probe, orbiting Saturn, New Horizons, headed for Pluto, and Juno, headed for Jupiter. Cassini and New Horizons also visited Jupiter with a flyby.
| Spacecraft | Launch Year |
Jupiter | Saturn | Uranus | Neptune | End Year |
|---|---|---|---|---|---|---|
| Pioneer 10 | 1972 | Flyby | 2003 | |||
| Pioneer 11 | 1973 | Flyby | Flyby | 1995 | ||
| Voyager 1 | 1977 | Flyby | Flyby | |||
| Voyager 2 | 1977 | Flyby | Flyby | Flyby | Flyby | |
| Galileo | 1989 | Orbiter | 2003 | |||
| Galileo Probe | 1989 | Entry | 1995 | |||
| Ulysses | 1990 | Flyby | 2009 | |||
| Cassini | 1997 | Flyby | Orbiter | |||
| New Horizons | 2006 | Flyby | ||||
| Juno | 2011 | Orbiter |
Read more about this topic: Outer Planets
Famous quotes containing the word exploration:
“Typography tended to alter language from a means of perception and exploration to a portable commodity.”
—Marshall McLuhan (1911–1980)
“I call her old. She has one family
Whose claim is good to being settled here
Before the era of colonization,
And before that of exploration even.
John Smith remarked them as he coasted by....”
—Robert Frost (1874–1963)
“For women who do not love us, as for the “disappeared”, knowing that we no longer have any hope does not prevent us form continuing to wait. We live on our guard, on watch; women whose son has gone asea on a dangerous exploration imagine at any minute, although it has long been certain that he has perished, that he will enter, miraculously saved, and healthy.”
—Marcel Proust (1871–1922)