Multimedia Gallery
Chronometers like this one by Charles Frodsham were used on the U.S. Exploring Expedition (1838-1842).
Chronometers like this one by Molyneaux & Son were used on the U.S. Exploring Expedition (1838-1842).
Chronometers like this one by Parkinson & Frodsham were used on the U.S. Exploring Expedition (1838-1842).
Tradition says this was the first American-made marine timekeeper taken to sea.
Engineers testing systems before the launch of Mariner 1 in 1962.
Launch of Mariner 1 on July 22, 1962.
Mariner 10 used the gravity of Venus to propel itself to Mercury.
Mariner 10 on board an Atlas-Centaur Rocket.
Launched in 1973, Mariner 10 used the gravity of Venus to propel it to Mercury with a minimal use of fuel.
Trajectory of Mariner 10. After launch and flyby of Venus, it orbited the Sun to fly by Mercury three times.
