NASA astronauts successfully sequenced the DNA of microbes found aboard the International Space Station, marking the first time unknown organisms were sequenced and identified entirely in space. Previously, microbes had to be sent to Earth for analysis, and this new sequencing marks an important step in diagnosing astronaut illnesses and, someday, identifying any DNA-based life found on other planets... ... As a part of the Genes in Space-3 mission, astronauts on the space station last year touched a petri plate to surfaces on the space station and grew the bacteria found there into colonies, which NASA astronaut Peggy Whitson used...