The research team collected snow, ice and soil samples which are processed and will be analysed for evidence of life - the type and abundance of different bacteria and algae.
A soil sample from sites visited by the team in the Austrian Alps yielded over 2,000 different species, but because of the limitations in scientific techniques, this could represent only 2% of the total species in each sample. Maybe you'll be the person to find a way to discover the remaining 98%!