SUNSET: 
This Week's Sky at a Glance, April 28 – May 7
The Arch of Spring across the west enfolds Mars and Venus. Wintry Sirius nears its heliacal setting low in the southwest. The Summer Triangle stars come into view one by one in the east.
Explore the Night with Bob King
See the Young Moon and the Lyrid Meteor Shower
We have an exciting week ahead with a crescent Moon that might break your observing record followed by a well-timed Lyrid meteor shower.
Meet Elnath in the Horn of the Bull
Elnath, the bright, blue-white star that marks one of the horns of Taurus, is a peculiar star in its own right.
Pleasures of Lunar Pareidolia
Do you still see animal shapes in clouds? If so, you'll enjoy doing the same with the Moon, home to the Moon Maiden, a giant pair of scissors, and other fantastic specters of light and shadow.
Anticipating Comet Tsuchinshan-ATLAS (C/2023 A3)
Newly discovered Comet C/2023 A3 might reach naked-eye brightness when it flies past Earth in 2024. Check out our forecast of what to expect to see in the months ahead.
Aurora Season Is Underway
These are the nights to get ready for the auroras — and tonight may be your lucky night. Not only is the current solar cycle swiftly intensifying, March is one of the best times of the year to see the northern lights.
Catch Birth Flickers of Budding Suns in Orion
Three flickering stars in Orion offer insight into what life looks like before the main sequence.
Understanding the Tails of Comet ZTF (C/2022 E3)
We explore Comet ZTF's remarkable trio of tails and share the latest news and photos.
See Comet ZTF (C/2022 E3) Dash Between Big and Little Dippers
Forget the hype and go outside to enjoy the real thing — a relatively bright comet you can see in binoculars from a dark sky.
Tiny Asteroid 2023 BU to Miss Earth
A recently discovered asteroid will pass exceptionally close to Earth on January 26th. Here's how to see it. Also, Comet ZTF (C/2022 E3) is brightening nicely, with three tails visible in binos.
The Moons of the Solar System
Not so long ago, astronomers thought only a few dozen moons orbited the planets of our solar system. Today, the total count tops 170!
Meet Mirfak, the Supergiant of Perseus
Mirfak, the brightest star in the constellation Perseus, is a yellow supergiant star with an uncertain fate.
Solar and Lunar Eclipses in 2023
Although no total lunar eclipses occur this year, skywatchers can look forward to two “central” solar eclipses — including an annular event in October whose path runs from Oregon through Texas.
Explore the Night with Bob King
Explore Double Stars in the "Winter Pair-a-gon"
The Winter Hexagon is not only key to finding six of the season's most prominent constellations but also a gateway to a more than a half-dozen delightful double stars.
What to Look For & When During a Total Solar Eclipse
Look for these astronomical and Earthbound phenomena during the total solar eclipse on April 8, 2024.
The Best Meteor Showers in 2023
The two richest, most reliable annual meteor showers, the Perseids and Geminids, are Moon-free in 2023. Others showers await you too.
All Eight Planets Line Up ... Again!
Echoing summer's great arc of planets at dawn, winter presents the full octet again, this time splayed across the evening sky.
Catch the Geminid Meteor Shower; Plus, Watch RW Cephei Fade
The luminous Geminid meteor shower returns. We also meet a binocular-bright star that may be experiencing Betelgeuse-like convulsions.
Explore the Night with Bob King
Mars Mesmerizes at Opposition
It may not be the closest opposition, but this time around Mars arcs high across the sky where good seeing promises sharp views. That's not all. On December 7th, one night before opposition, the full Moon occults the Red Planet!
Explore the Night with Bob King
Sneak Peek at Two Promising Comets
Ready to chase comets? We look at two fuzzy solar system travelers that will keep you on your toes all fall and winter long.