The fleas, or Daphnia, -- being prepared for their transit to the US and their flight into space -- come from a lake close to University of Birmingham and are the first animals from UK waters to travel to space.
The idea is to see how they react to life in space on the International Space Station (ISS).
Water fleas are very interesting creatures that usually reproduce asexually. They are all females and they give birth to pairs of tiny female twins they carry inside them.
Damme said: "By understanding the health of water fleas in orbit, we can assess their use as models for human health under the same conditions, and their use for setting up simple ecosystems that can survive long space travels."
This is part of a school's educational science project by the International Space School Education Trust and Mission Discovery, in coordination with the King's College London and University of Birmingham.
In preparation for the flight, scientists at Birmingham have to ascertain how much algae the fleas will need to feed on while they are at the ISS and if they can survive in the cold temperatures they will be exposed to on their journey.
Together with scientists at King's College London, they are also preparing the astronaut manifest.
"The knowledge and enthusiasm of the Daphnia research team in Birmingham has been pivotal in ensuring that success of this experiment aboard the International Space Station," said Julie Keeble, who leads the Mission Discovery experiments.
Chris Barber, Director the International Space Station Educational Trust, said: "At ISSET we have for many years utilised space exploration to encourage the NASA 'you can do it spirit' in our young people, but it is truly a first for us to extend this to include space travel for other forms of life from the Midlands.
