Comet 45P Returns to Dark Skies
With the Moon out of the picture, amateurs can once again check in on comet 45P/H-M-P, now making an appearance in the evening sky.
Green Comet 45P Makes Close Earth Flyby
Green-glowing 45P/Honda-Mrkos-Pajdusakova will make an unusually close pass by Earth on Saturday. Watch it boogie across the morning sky this week!
Explore the Night with Bob King
Star-Trapping in Orion's Trapezium
Take a high-power ride to seek out baby stars and clotted clouds within the heart of the Orion Nebula.
Explore the Night with Bob King
Get Your Iridium Fix Before It's Too Late!
The shock and dazzle of Iridium flares will soon be a thing of the past. Here's how to make the most of seeing them before they're replaced by a new generation of satellites.
Explore the Night with Bob King
See Mercury First, Then Have Breakfast
Late sunrises make it easy to follow the parade of planets at dawn, including a nice apparition of Mercury this week with three successive lunar conjunctions.
Explore Craters in the Lunar Arctic
Put on a coat, set up your scope, and become a polar explorer as we visit off-the-beaten-path craters and maria in the Moon's arctic vastness.
Explore the Night with Bob King
Bright Prospects for Comets in 2017
Comet lovers have much to look forward to in the new year with six potential bright binocular comets and at least two others for modest backyard telescopes.
Mars Meets Neptune on New Year's Eve
Doing anything on New Year's Eve? Before you start toasting, don't miss an exceptionally close conjunction of Mars and Neptune.
Explore the Night with Bob King
Swing Low, Sweet Sun: It's Solstice Time
Daylight ebbs to a minimum on Wednesday's winter solstice, but not for long. The very next day, the Sun turns back north and the cycle of light begins again.
Colored Double Stars, Real and Imagined
Colorful lights twinkle everywhere during the holiday season, including up above in some remarkably tinted double stars. Find out what makes them so alluring.
Supermoon and Geminids Duke it Out
In a spectacular case of bad timing, the full Moon coincides with the annual Geminid meteor shower. Don't feel put out. There's still something for everyone, including a consolation prize.
Comet Campaign Seeks Imagers Worldwide
Calling all imagers! Three comets will make close flybys of Earth over the next two years. Join a new pro-am effort to make the most of this rare triple play.
Explore the Night with Bob King
Quasar CTA 102: Historically Bright, Violently Variable
The normally faint quasar CTA 102, once thought to harbor an advanced civilization and made famous in a 1967 song by the Byrds, is currently bright enough to see in an 8-inch telescope. In the history of SETI, the Search for Extraterrestrial Intelligence, there have been two great false alarms.…
Uranus: In Seventh Heaven with Planet Seven
With our eyes often glued to the bright classical planets, Uranus is easy to overlook. Now well-placed for viewing at a convenient hour, why not pay this pale blue dot a visit the next clear night?
Explore the Night with Bob King
Behold November's Super-Duper Supermoon
You won't want to miss the biggest, brightest full Moon in more than 68 years. Find out what makes this supermoon so special and how best to view it.
Explore the Night with Bob King
The Merope Nebula and Its Well-Kept Secret
Did you know that the brightest part of the Merope Nebula in the Pleiades is also the hardest to see? We'll make sense of this seeming contradiction while honing key observing skills.
Explore the Night with Bob King
Spooky Nebulae for Halloween Nights
While the kids are gathering sweet treats this Halloween, get a celestial scare with these frightful deep-sky sights.
Halley On Fire! Orionids Peak This Week
The annual Orionid meteor shower is active all week, peaking Friday morning October 21st. If you're up before dawn, you might just see these Halley's Comet castoffs come to life.
Explore the Night with Bob King
Plant Your Eyes In Delta Cephei's Fertile Triangle
The famous variable star Delta Cephei unlocks a box deep-sky treasures in a little-visited corner of Cepheus, the King.
Resolving Andromeda — How to See Stars 2.5 Million Light-Years Away
At 2.5 million light-years away, you might think it's impossible to see individual stars in the Andromeda Galaxy. Let its largest star cloud, NGC 206, show you the way.