While you're here
While you're here
How Alia's experiment will help humans get to Mars
Alia’s winning experiment examined how genes might change under the stresses caused by being in space, such as cosmic radiation and microgravity.
Her samples were placed in a machine on board the International Space Station. called a miniPCR thermal cycler, which can copy DNA multiple times.
After the samples were examined on return to Earth, scientists were able to successfully detect changes caused by being in space in the way DNA transmits instructions through proteins and other molecules in living organisms.
Although Alia’s samples were taken from nematode worms, the results have much bigger long term applications, especially for human space flight and long term missions, such as to Mars.
It also means that the first DNA experiments using human genomes can now be carried out on the ISS.
