About 700 new chemicals are created each year. Last year the Environmental Protection Agency set a goal to review 40. It finished only 3.

In 2011, the EPA was set to cite evidence of cancer risks in hexavalent chromium, a cancer-causing chemical found in tap water that was brought to light in the film “Erin Brockovich.” Yet a special EPA panel urged the agency to delay action. Learn about the shocking truths revealed in this investigation.

528 years after he died in battle at Bosworth Field at the age of 32, the remains of King Richard III were finally unearthed in a car park in Leicester. Learn about the fascinating way in which his complete skeleton was discovered.

Above, the skeleton of Richard III is seen in a trench at the Grey Friars excavation site in Leicester.

At the American Astronomical Society meeting, scientists presented the first reliable tally of the number of Earth-sized exoplanets in our Milky Way. And the number is a staggering 17 billion. That’s one in six stars hosting an Earth-sized planet in a tight orbit, NASA reports. More

A little known winter fact: ski moguls, those tricky-to-navigate bumps on well-traveled runs, actually migrate slowly uphill.

David Bahr, an avid skier and professor of physics and computational sciences at Colorado’s Regis University, had suspected for some time that the moguls he slalomed moved up the mountain, so he tested the theory. Check out the full story here.