Joe Rao

Rise and shine! Venus, Aldebaran and the moon team up for a dazzling dawn display.

Each summer, skywatchers around the world look forward to the famous Perseid meteor shower, but often overlook four lesser showers that peak between July 29 and Aug. 16.

The International Space Station and China's Tiangong Space Station will be visible for early risers. Here's how to make a dual sighting.

Earth is at its farthest point from the sun on July 3. So why are temperatures so high across the U.S.?

Most people have never seen the Little Dipper, because most of its stars are too dim to be seen through light-polluted skies.

On June 26, you'll have an opportunity to behold the sight of a slender waxing crescent moon positioned just to the right of Mercury.

The sun will reach its most northern point on June 20, marking the start of the summer season in the Northern Hemisphere.

During the latter part of June, Mars will put on a couple of eye-catching shows, teaming up first with a bright star and then, late this month, with the moon.

Mizar, a star in the Big Dipper's handle, has a tiny companion. This star, Alcor, was known to the ancients. The pair was popularly known as the "Horse and Rider."

Astronomy has lost one of its most assiduous calculators of eclipses with the passing of astronomer Fred Espenak, known widely as "Mr. Eclipse."

Jupiter teams up with an exceedingly narrow crescent moon for the last time this year in the evening sky on May 27.

A slender crescent moon, will form a spectacular pair with the brilliant planet Venus during the dawn morning hours of May 23.

The bright constellations of winter have departed in the west, while the stars of spring are climbing the eastern and southern skies.

The Red Planet will buzz the Beehive during May 4-5, with the moon joining the party on May 3.

The annual Eta Aquarid Meteor Shower is due to peak on the morning of May 6. thanks to debris left by the famous Halley's Comet.

Some people probably believe that the twinkling effect is produced by the stars themselves, but that is not the case at all.

Easter falls on the Sunday that follows the first full moon occurring on or after the day of the spring equinox. So it seems like Easter should be this weekend. Here's why it isn't.

Here's an observers' guide to the newly discovered Comet 2025 F2 (SWAN), which is visible in northern skies right now.

The Lyrid meteor shower, one of the oldest known of the annual showers, peaks this year with only some small interference from a waning crescent moon.

After putting on a great show in our evening sky since the fall of 2024, dazzling Venus puts on a spectacular showing for early morning risers for the balance of 2025.

A partial solar eclipse is coming this weekend, but weather could be an issue for many hoping to get a glimpse of the moon "taking a bite" out of the sun.

Observers across eastern North America and much of Europe will have front-row seats to the striking partial solar eclipse on March 29. Here's what to expect.

Just how rare are planetary alignments?

Here are the weather conditions that can be expected during the the total "Blood Moon" lunar eclipse thought the United States on March 13, 2025.

Observers across most of the United States will have front-row seats to the spectacular total lunar eclipse overnight on March 13-14. Here's what to expect.