On this day
July 20th
2 deep-dives for July 20, oldest first.
Exploration & Discovery 1976
First Light on Mars: Viking 1 Lands
Exactly seven years after Apollo 11, NASA's Viking 1 became the first spacecraft to land successfully on Mars and operate, returning the first clear pictures from the Martian surface.
Exploration & Discovery 1969
One Small Step: Apollo 11 Lands on the Moon
On 20 July 1969, the Apollo 11 lunar module Eagle touched down in the Sea of Tranquility, and Neil Armstrong became the first human to walk on another world.