Jacqueline Barton: DNA like wire for signaling within a cell

Jacqueline Barton received a National Medal of Science after learning that cells use the double strands of the DNA helix like a wire for long-range signaling.

What causes paper to yellow as it ages?

Researchers sampled manuscripts from 15th century France and Italy to learn what molecular structures arise in paper as it ages.

Want to look good on Facebook? Have attractive friends

Scientists in The Netherlands studying students find that the attractiveness of your friends might affect how you are perceived on Facebook.

Video: Alive inside! Man in nursing home listens to music

Alive inside! Watch this wonderful video of an elderly man in a nursing home reacting to music.

Robosquirrels versus rattlesnakes

Robot squirrels - or robosquirrels - are going into rattlesnake country to help scientists learn how real squirrels interact snakes. Watch the video!

Twins: 1 in 30 babies born in U.S. is a twin

In 2009, one in every 30 babies born in the United States was a twin. That's compared with one baby in every 53 were twins in 1980.

Foot fossil confirms two human ancestor species co-existed

The partial foot fossil indicates a creature that walked upright but that still had an opposable toe, which made it good at climbing trees.

A camera that can see around corners

Great new video shows a new camera that can see around corners - how it works. Neat! The camera was developed by researchers at MIT.

Brain cells hold memories, say researchers

Researchers say brain cells hold memories. Memory engrams - traces of memory do reside in brain cells, say researchers from MIT and Stanford.

Hidden water use, by Charles Fishman

Watching your flat screen TV uses water. So does running your computer. Fishman talked about water use that we might not think about - or even know about.