An empty turtle shell

Turtle Shells: More Than Meets the Eye

Turtle shells evolved over time from earlier precursor structures.
Google's self-driving car

That Time a Self-Driving Car Stared Down a Cyclist

A cyclist in Austin, Texas had an awkward encounter with a Google self-driving car when he approached a 4-way stop at the same time as the vehicle.
AFP/Getty Images

Hand to Ankle: A New Grafting Technique Offers Hope

The surgical reattachment or grafting of limbs has a short history because of its difficulty.
Close-up of a spicy Chinese chicken dish

Will Spicy Foods Preserve You?

Spicy foods may prolong life; they certainly act as food preservatives.
Artist's concept of buckyballs and polycyclic aromatic hydrocarbons around an R Coronae Borealis star rich in hydrogen. Credit: MultiMedia Service (IAC)

What’s between the Stars? Buckyballs!

How buckyballs fit into the formation of new stars.
"OregonCoastEcola Edit" by Cacophony edit by Noodle snacks - Own work. Licensed under CC BY-SA 3.0 via <a href="https://commons.wikimedia.org/wiki/File:OregonCoastEcola_Edit.jpg#/media/File:OregonCoastEcola_Edit.jpg" target="_blank">Wikimedia Commons</a>

Is the Pacific Northwest Due For a Big Earthquake?

The Pacific Northwest may be due for a big earthquake, and there is historical evidence to suggest it may be huge.
Bust of queen Nefertiti in the Neues Museum, Berlin

"Nefertiti 30-01-2006" by Arkadiy Etumyan - Own work. Licensed under CC BY-SA 3.0 via <a href="https://commons.wikimedia.org/wiki/File:Nefertiti_30-01-2006.jpg#/media/File:Nefertiti_30-01-2006.jpg">Wikimedia Commons</a>

The Tomb of Queen Nefertiti?

The long undiscovered tomb of Queen Nefertiti may have been found.
View looking up through a forest canopy

Jacques Cousteau on Man’s Divorce From Nature

Jacques Cousteau's 1992 speech at the United Nations warning the consequences of "man's divorce from nature" seems more prescient than ever.
Atlantic Blue Crab

Why Urban Crabs Are More Aggressive

Urban crabs are more aggressive than their rural counterparts because of heavy metal contamination.
Close-up of the face of a killer robot

Who’s Afraid of Killer Robots?

Two recent DARPA projects have sparked fears about killer robots, machines that can decide whether to engage a target without human oversight.