On July 20, 1976, the Viking 1 lander, an unmanned U.S. planetary probe, became the first spacecraft...
SCIENCE
July 20, 2026
On This Day: Viking 1 is first spacecraft to land on Mars
On July 20, 1976, the Viking 1 lander, an unmanned U.S. planetary probe, became the first spacecraft to successfully land on the surface of Mars.
On July 20, 1976, the Viking 1 lander, an unmanned U.S. planetary probe, became the first spacecraft to successfully land on the surface of Mars.
Author: upi.com
Read Original Article
