Pollen's no friend of the allergy-prone, but there's an upside to your itchy eyes — weird and colorful coronas around the Moon and Sun.
A cosmic rabbit hole in the tail of Leo will take you to Abell 1367, a wonderland of galaxies more than 300 million light-years from Earth. Step in and lose yourself in the vastness.
The annual Lyrid meteor shower will add some pop and sizzle to Saturday's pre-dawn sky. With little interference from the Moon, conditions are ideal for meteor watching.
Get ready for 2014 JO25, the biggest asteroid to fly this close to Earth since 2004. Good news — even a 3-inch telescope will show it! Update: See below for a radar image and animation of 2014 JO25 captured by NASA's Goldstone Solar System Radar on April 18, 2017. Every week, a handful of new Earth-approaching asteroids…
Dawn comet C/2015 ER61 PanSTARRS just underwent a bright outburst and is now an easy binocular object. Take a look before the Moon returns!
It's easy to like Jupiter. No other planet offers such a bounty of amazing sights through the telescope, especially this week when it reaches opposition. On April 7th, the largest planet in the solar system will rise at sunset and shine all night. That's the date Jupiter lines up behind the Earth in opposition. The…
Terry Lovejoy's new comet has gone from faint to bright in just three weeks and is now a tempting binocular target at dawn.
Here are some tips on you, too, can see Sirius B, the "Pup" of the Dog Star, Sirius A.
A recently discovered supernova in Lupus now shines around magnitude +11.5, bright enough to see in a modest telescope. With photos and maps, we'll get you there. I wished I lived in Georgia and not just for the peach trees and warmer weather. No, I'd be able to get up early tomorrow morning to marvel at…
With Venus approaching inferior conjunction, don't miss the chance to see one of the thinnest Venus crescents of your life.
Comet 41P/Tuttle-Giacobini-Kresak begins its best showing of the year this week as it slingshots across the Big Dipper into circumpolar skies.
Obsolete constellations may be gone, but they're not forgotten. We revisit their brief glories and learn how to find them in the 21st-century sky.
Push your telescope to the limit and put your eyes to the test with this series of tight-knit springtime double stars.
If you're crazy about crescents, you'll find your happy place this week between the Moon and Venus. Meanwhile, we shift our focus from 45P/H-M-P to another famous periodic comet, 2P/Encke.
Many of the deep-sky objects we point our telescopes toward have pleasant surprises, some in plain sight, others hidden and more challenging. Let me introduce you to a few.
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-glowing 45P/Honda-Mrkos-Pajdusakova will make an unusually close pass by Earth on Saturday. Watch it boogie across the morning sky this week!
Take a high-power ride to seek out baby stars and clotted clouds within the heart of the Orion Nebula.
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.
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.
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.
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.
Doing anything on New Year's Eve? Before you start toasting, don't miss an exceptionally close conjunction of Mars and Neptune.
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.
Colorful lights twinkle everywhere during the holiday season, including up above in some remarkably tinted double stars. Find out what makes them so alluring.