Theory of Relativity

bent by the curvature of space caused
by the foreground galaxy cluster
Credit: NASA/ESA
Occupation: Astronomer, Writer, Broadcaster
Year born: 1923
Research Areas: the Moon, the Planets, Star Catalogues
How many astronauts can you name? Maybe 1 or 2? Well done if you can name more than 5! But did you know more than 500 people from more than 30 countries have been to space?!