This undated photo provided by Heritage Auctions shows a glass U.S. penny. Faced with a copper shortage at the beginning of World War II, the U.S. Mint authorized experiments to make pennies from other metals, plastic and rubber.
Twins delivered 10 minutes apart at an Arizona hospital over the New Year's weekend have different birth years.
SpaceX plans to resume flights as early as next week after finding the cause of an explosion that destroyed a rocket and satellite on a Florida launch pad in September.
Environmentalists are protesting Poland's plan to allow hunters to shoot bison, while authorities say it is necessary for the well-being of the oversized herd and will earn money for its upkeep.
A fossil found in limestone along a remote South Texas riverbed could be that of a dolphin-like reptile that swam in oceans 90 million years ago, according to paleontologists.
Katherine Snedaker says she has had 20 concussions, the first three decades ago from a car accident when she was 16. But it wasn't until her son suffered a series of concussions in the sixth grade, around 2008, that she felt compelled to learn all she could about head injuries to help him recover.
As Barack Obama began preparing to leave office, the first smartphone-toting U.S. president ordered his team to upgrade the White House's aging technology for his successor. New computers were purchased and faster internet was installed.
Legend has it that a Roman empress first brought cats to Cyprus to do battle with poisonous snakes, but centuries later it's the island's financial crisis that has sparked a population boom.
The famed Hollywood sign high in the hills over Los Angeles got a little higher on Sunday, when someone altered two of its letters to make it read "Hollyweed."
The mega extravaganza of the tech world in Las Vegas is showcasing an array of new devices that get smarts from computer chips, sensors and artificial intelligence, but go further by opening doors to augmented or virtual realities.