The solar cycle can be irregular, but some patterns might be trackable—enough to provide a heads-up before extreme weather ...

The romance of Prague is enthralling, from its pretty winding lanes to its skyline of rising spires. Over the past few ...

Just over two and-a-half hours from Cork Airport, Prague and Central Bohemia are a rhapsody of perfect notes, particularly in ...

A newly discovered turning point in the Sun’s 11-year cycle could allow scientists to predict future solar activity years ...

Thanks to a speed-up of Earth's rotation, the length of the astronomical day and the length of the clock day aren't quite ...

Something magical happens inside my brain on a warm summer’s day when I descend into an open body of water, be it the sea, a ...

On Tuesday the U.S. House of Representatives passed the Sunshine Protection Act, a measure to enact year-round daylight ...

The launch, which could take place this summer, is just a beta test of the basic technology, but Reflect Orbital—which bills ...

Archaeologists exploring the Maya ruins of Xultun in Guatemala have, for the first time, deciphered the name of an ancient ...

Soon, the first day of fall, or the autumnal equinox, will arrive, and then we'll fall back. Astronomical fall begins at 8:05 ...

The moon over America's first Independence Day was about 31 feet closer to Earth than it is today. Here's how colonists used it as a clock, calendar and streetlight — and what astronomers knew about ...

Add Yahoo as a preferred source to see more of our stories on Google. As the U.S. commemorates the 250th anniversary of the signing of the Declaration of Independence, Tiffany & Co. is bringing a ...