In 1947, fruit flies were the first animal to enter space
Laika flew on the Soviet Sputnik 2 rocket in 1957
Ham the chimp flew in 1961 and was trained to perform tasks
In 1961, Yuri Gagarin was the first human in space
A C. elegans worm
While perhaps not an obvious choice the tiny C. elegans worm has been routinely used on Earth and in space to study biology. Click on the picture of a C. elegans worm to find out more about them.
We ultimately need to study human responses to spaceflight, but the small number of astronauts and inability to perform invasive experiments means different approaches are needed
The negative effects of space also occur in other species, so we can use these to study these changes
There is a long history of scientists sending animals into space for research...