A week after one of the world's worst aviation disasters killed more than 270 people in the western Indian city of Ahmedabad, ...

"What I think is really cool here," he says, "is we can see the whole living world based on the DNA in the air, and we can do it all without any new infrastructure." Kelly says it's not yet clear ...

Ryan Kelly is a marine scientist at the University of Washington who studies environmental DNA and wasn't involved in the research. "What I think is really cool here," he says, "is we can see the ...