The experiment, simple in its design, took five years to complete.
These suspected caves could be gateways to Mars’ past, and to any future human presence.
“Have you tried turning it off and on again” is really good (if annoying) advice.
Curiously, Neanderthals in France stopped making fire when they needed it most.

Caltech professor of medical engineering Wei Gao and his colleagues are envisioning a smart bandage of the future—a…
A large genetic study shows that many people carry DNA sequences that slowly expand as they get older.…