Planning a sidewalk stargazing event? Here are a few suggestions to make sure people walk away smiling.
The recurrent nova T Coronae Borealis last made a splash just after World War II. Does its current restive state hint at an imminent outburst?
With astronomy being celebrated around the globe this month, join the fun by participating in a unique lunar observing challenge: track down 20 features once thought to show evidence of change from weather, geology, and even life.
With the Moon finally put to bed and Comet 252P still bright, there's no better time than now to see it. Nearby Mars and Saturn only sweeten the deal.
Hidden within the subtle hues of the stars are the keys to their temperatures and compositions. Get acquainted with the classic OBAFGKM spectral sequence through real stars you can see on a spring night.
Splintered comet duo 252P/LINEAR and P/2016 BA14 liven up both dusk and dawn this week. Naked-eye 252P finally debuts in northern skies, while BA14 makes a beeline through the Big Dipper.
Not one, but two, possibly related comets will make exceptionally close flybys of Earth on March 21–22. Here's what we know and a guide on how to see them.
Baptized in the fire of yesterday's total solar eclipse, a very young crescent Moon emerges into the night sky.
Spiraling stars and light-soaking dust clouds enliven the heart of this lesser-known planetary nebula NGC 2346 in Monoceros. Will you be the first to catch it playing peekaboo again?
The lure of dark skies often takes us to unfamiliar places where nocturnal animals and encounters with strangers can ignite our primal fears.
Jove begins a new apparition with a redder Red Spot, pirouetting moons, and ever-changing cloudscapes.
Put the Great Nebula in Orion in the backseat and pay a visit to its humble neighbors
This week and early next will be your last chance to see five planets — six if you count Earth — at dawn.
Does the cold make you think twice about winter observing? Here are a few tips on how to do it in comfort.
Asterisms appeal to our playful side but also serve as key waypoints in the sky for identifying fainter stars and constellations.
In winter, we face the Milky Way's anticenter, a little-explored region offering goodies for telescopes both large and small. Few give much thought to the Milky Way's anticenter, a lonely locale 180° opposite the busy metropolis of Sagittarius, where the summer Milky Way glitters like Vegas. On winter nights, Sagittarius lies behind us, hidden by Earth's bulk. Step outside around...
A look ahead to see what new and returning comets will spice up the new year.
Three stars that once belonged to Orion flew the coop millions of years ago, but you can catch up with them with binoculars the next clear night.
Bright Capella plays it close to the vest when it comes to companions, but with a good map and steady skies you can track down its dwarf binary.
After taking us to Comet Catalina's doorstep, the Moon covers Venus in a spectacular daytime occultation visible from most of North and Central America on Monday, December 7, 2015.
Is perception reality? Not when it comes to the Moon illusion. See the truth with your own eyes at the rising of the next full Moon.
S5 0716+71, a bright blazar currently in a feeding frenzy, invites you over for dinner the next clear night.
Comet Catalina returns this month with naked-eye potential. Follow its every move with our guide and maps.
Travel 2.7 million light-years from home to the Pinwheel Galaxy, where we'll visit a supergiant star, an extragalactic globular cluster, and one of the largest nebulae in the known universe.
Who says you need a telescope to see craters on the Moon? Here's how to find a half-dozen with just the naked eye.