Portal:History of science/Selected anniversaries/July 30
- 1641 - Birth of Regnier de Graaf, Dutch physician and anatomist (d. 1673)
- 1889 - Birth of Vladimir Zworykin, Russian physicist (d. 1982)
- 1971 - Apollo program: Apollo 15 Mission - David Scott and James Irwin on Apollo Lunar Module, Falcon, land with first Lunar Rover on the moon
- 1985 - Death of Julia Hall Bowman Robinson, American mathematician (b. 1919)