Our state-of-the-art representation of the entire celestial sphere lets you explore the stars above as never before.

If you've never seen the fleet-footed planet Mercury, now is a great time to look for it in the evening sky after sunset.

It doesn't happen often, but soon you'll be able to "spot the spot" — Mercury's silhouette — as the innermost planet crosses the Sun's disk.

Two amateur videos shot early on March 17th show a brief but bright flash on the edge of Jupiter's disk. Did the King of Planets get whacked again?

Skygazers thronged to Indonesia hoping to see a total solar eclipse — and most were rewarded with breathtaking views of the event.

On March 9th — late on Tuesday, March 8th, in the U.S. — the Moon will completely cover the Sun. Check here for the links you'll need to see this celestial spectacle as it happens.

Two planets and a pretty crescent Moon gather low above the southeastern horizon before dawn on February 6th.

The first days of February offer your best chance to see all of the naked-eye planets — from Mercury to Saturn — together with the Moon in the predawn sky.

Early risers have been patiently waiting for the innermost planet to join four others — and the Moon — in the predawn sky. Now they're all in view.

There will be four eclipses in 2016. Highlights are a total solar eclipse on March 9th (visible from Indonesia) and an annular solar eclipse on September 1st (central Africa). But we'll see just two barely-there penumbral eclipses, on March 23rd and September 16th.

Over the next two weeks, for the first time in more than a decade, you can see all of the naked-eye planets — from Mercury to Saturn — together in the predawn sky.

The Quadrantid meteors, the year's least-observed major meteor shower, should be in plain sight when it peaks early on January 4th.

Mercury is usually a shy and elusive catch for naked-eye skywatchers, but for the next few days it shows itself boldly if you look at the right time.