One of the brightest stars in the night sky will vanish as seen from North America and Europe in a rare event.

Stargazers can see six planets all in one evening during the second month of the year, especially Mercury, which is usually ...

Mercury, Venus, Neptune, Saturn, Uranus and Jupiter will appear together shortly after sunset on Feb. 28 — but is this the ...

The moon greets Jupiter two days ahead of its full moon phase on Feb. 1.

The moon is our nearest neighbor in space, at an average distance of about 238,000 miles. As it orbits our Earth every month or so, it appears to pass by ...

Skygazers who look up at the moon tonight may be able to spot Saturn below it. Here's when and how to spot the conjunction.

The moon and Venus will shine vividly alongside a bright star in the early morning in a striking celestial rendezvous that should be visible across the U.S. But unless you're willing to wake up before ...

The big astronomical event in February is a rare “planetary parade,” according to NASA. You’ll be able to see Mercury, Venus, ...

One of the best naked-eye stargazing sights of the year is on offer to skywatchers this week — if you can rise before the sun Friday (Sept. 19). Just before sunrise, the crescent moon, the brilliant ...

What do you call an object that has all the characteristics of a moon, but whose mass compares to that of a giant planet? The ...