The Cassini spacecraft spotted a disturbance in the 6th planet's outermost main ring that is thought to be caused by a tiny moon measuring just half-a-mile across.

The view was great across much of the Americas early Tuesday as the moon turned red during a total lunar eclipse. If you missed it, the next one comes on Oct. 8.

Luminescent paint absorbs energy during the daylight hours and then glows green in the dark. If widely adopted, the inventor envisions an energy-saving smart highway.

When it comes to resetting your biological clock, calculus can help. Mathematicians say they've found a faster way to adjust to time zone changes, and they've used it to drive a smartphone app.

The ancient city of Angkor Wat has gotten the Street View treatment. Google says it combined 90,000 panoramic images to let people explore the country's famed temples.

New drugs are usually tested in animals before they're tested in humans. But many of those studies aren't done carefully enough, analysts say. So time and money is wasted, and treatments delayed.

FireChat connects users without a cellular network or the Internet. It uses technology, known as mesh networking, that could be scaled up to provide Internet access to disaster zones and remote areas.

The head of the International Air Travel Association says of the missing Malaysia Airlines Boeing 777: "We cannot let another aircraft simply vanish."

The rule will apply to all new vehicles under 10,000 pounds, which includes small subcompacts all the way to commercial vans. The government says the new rule could save more than 60 lives a year.

Old records are breaking, cassette tapes are warping, even digital recordings can become obsolete. The Library of Congress is working to save millions of the nation's recordings before they're lost.