An FBI pilot program to scan prisoners' eyes is under way in California, Texas and Missouri.
A self-correcting contact lens could eliminate the need for bifocals, trifocals or laser corrective surgery.
African Americans may have gotten the vote a century earlier, and Western cities might have looked a lot different, historians say.
Edward Snowden cited his conscience for whistle-blowing on the NSA, but maybe it was really payback.
Slower uphill riding times, red blood cell counts and more crashes in the peloton all point to a cleaner Tour de France.
Three American Navy fliers were buried in Antarctica after their plane crashed. Now explorers want to recover their remains.
As world leaders gather to assess the planet's health, most reports are gloomy, save for a couple bits of good news.