The car carrying Kaylin Gillis, 20, was turning around after her friends realized they had made mistakenly gone to the wrong address. The 65-year-old homeowner fired at them from his porch.

The answer could matter for your home value, stock portfolio, and the future of the economy.

The massive ice sheet on Greenland is shrinking as the climate gets hotter, pouring fresh water into the Atlantic Ocean. That could be setting off a chain reaction that's altering ocean ecosystems.

Anthony Comstock pushed Congress to crack down on what he saw as harmful vices, such as pornography and contraception. An 1873 law named for him has appeared in recent court battles over abortion.