FAQ

What was the first spacecraft in space?

Sputnik 1, launched by the Soviet Union on October 4, 1957. It orbited Earth every 96 minutes and transmitted a radio signal for 21 days.

How many people have walked on the Moon?

12 astronauts across 6 Apollo missions between 1969 and 1972. No human has been back since Eugene Cernan stepped off the Moon on December 14, 1972.

What is the farthest human-made object?

Voyager 1, over 24 billion km from Earth and still transmitting. It entered interstellar space in 2012. At light speed, signals take over 22 hours to reach it.

How much does a SpaceX launch cost?

A Falcon 9 launch costs about 67 million dollars, compared to over 500 million for a Space Shuttle launch. Reusability is the key difference. Starship aims to reduce costs further to under 10 million per launch.