Dna

Ellie Arroway (Jodie Foster) uses the VLA (Very Large Array) to look for alien signals. But that’s not the only way. Warner Brothers When people think about SETI, the Search for Extraterrestrial Intelligence, they imagine messages sent via radio—Jodie Foster tuning antennas, hoping to pick up signals from the “billions and billions” of star systems […]

The easily confused willow tit and black-capped chickadeef.c.franklin via Flickr / Brandon Keim One of my favorite pastimes while traveling is watching birds. Not rare birds, mind you, but common ones: local variations on universal themes of sparrow and chickadee, crow and mockingbird. Nautilus Members enjoy an ad-free experience. Log in or Join now . […]

Any cup you sip from could provide a sample bearing your DNA. dohtoor via Shutterstock Almost everywhere you go, you leave a bit of yourself behind—a hair, a fingernail clipping, a bit of skin, a few skin cells from your lips on a drinking cup. For a long time, that trace of you was little […]

DNA barcodes could keep restaurants honest.

Scientists are changing the rules for how DNA works.