if you mean CASSINI, then it was Saturn.
The Magellan probe was designed to study Venus. It went to Venus in 1994.
The Cassini--Huygens space probe will be used to study the planet Saturn and it's respective satellites .
The USSR launched the Venera series to study the planet Venus, the Venera 7 probe being the first spacecraft to make a controlled landing on another planet.
viking 1 was sent in outer space is to study planet from surfaces.. it was sent and landed at Mars and studied the surface of the planet... :)
Many kinds. their are Lander that crash into planets, orbiters orbit planets, rovers move and study the planet, and deep space probe fly away to study the Universe.
The space probe Cassini was launched in October 1997 to study Saturn.
PROBE stands for Prospective, Randomized, Open-label, Blinded Endpoint
study, probe
Cassini
Scientists can only speculate what type of sediments constitute Pluto. New Horizons, the NASA space probe that was launched to study the dwarf planet has a projected flyby of July 14, 2015.
During the 1990s, pollution abatement was one of the most rapidly developing areas of study within the industrial gases industry.
probe, study, alter, judge