Pluto

Date

Type

Name

Details

1905

Earth based

Percivell Lowell

Predicts Pluto’s position.

1930

18 February

Earth based

Clyde William Tombaugh

Found Pluto based on Percivell Lowell’s work.

1978

22 June

Earth based

James W. Christy

Charon discovered.

1994

21 February

Earth based

Hubble space telescope

First images resolved of any surface details though still vague Charon clearly visible as a satellite.

2010

Possibly earlier launch due to merger with Kuiper Belt project

Flyby

Pluto Express

Previously Pluto Fast Flyby now combined Kuiper Belt project.