April 23, 2018 icon depicting Haze weather 70°F
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In human cells, scientists find DNA that looks like a twisted knot instead of a double helix

For the first time, researchers have seen a new DNA structure — called the i-motif — inside cells. It’s a twisted “knot” of four strands.

A search for some of Earth’s most extreme creatures in the West Coast's deepest underwater canyon

Victoria Orphan’s study of “extremophiles” under the sea may offer insights about the evolution of life on Earth — and guide the search for life on other planets.

How to make a robot that will build your Ikea furniture

If you find Ikea furniture hard to put together, just ask a robot. Commercial off-the-shelf robotic hardware can now accomplish that task (at least, with an Ikea chair), and you can watch them do it on video.

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