First American Orbit of Earth
On February 20, 1962, John Glenn became the first American to orbit the Earth aboard his Friendship 7 capsule.
Space Exploration
Pluto Discovered
On February 18, 1930, Clyde Tombaugh discovered Pluto after nearly a year of searching. It would be another 85 years before the US sent its first space probe there – inspired by a postage stamp!
Mercury-Redstone 2
On January 31, 1961, Mercury-Redstone 2 launched Ham the Chimp into space. It was an important step in a program aimed at getting the first American in space.
Birth of Johannes Kepler
Johannes Kepler was born December 27, 1571 in Weil der Stadt, Germany. Kepler was one of the leading figures in an era that has been called the “Scientific Revolution.”
First Predicted Sighting of a Comet
On December 25, 1758, Halley’s Comet became the first comet to be seen after the accurate predicting of its passage. The comet was named after Royal Astronomer Sir Edmond Halley, who correctly predicted the comet’s return.
First Man on the Moon Stamp
On September 9, 1969, the US Post Office issued its first ever jumbo-sized commemorative stamp. Honoring the Moon landing, the stamp was produced in secret and wasn’t announced until a week before the Apollo 11 launch.
Viking 1 Lands on Mars
On July 20, 1976, Viking 1 became the first man-made object to land on Mars. It was one of the first spacecraft to conduct prolonged scientific studies on the surface on another planet.
First US-Soviet Joint Issue Stamps
On July 15, 1975, the US and Soviet Union each issued stamps honoring the launch of their Apollo-Soyuz Test Project, their first joint space venture.
First American Woman in Space
On June 18, 1983, Sally Ride became the first American woman in space. She was the third woman overall, after Soviet cosmonauts Valentina Tereshkova and Svetlana Savitskaya.