The next time you're out watching a sunset, turn around and relish the mighty shadow of Earth looming just behind your back.
Fascinating faculae provide a way for anyone with a small telescope to track the ups and downs of the solar cycle — even when there are no sunspots. Sunspots get all the press. Last week the Web hummed with articles about a spotless Sun, the first time since August 2011 our star wore a...
It's not a showstopper, but right now Comet Jacques (C/2014 E2) is poised for telescopic viewing in the hours before dawn.
Channel your inner superpower by looking up at the night sky precisely when a dazzling blaze of light is beamed to Earth from outer space.
Not every set of closely paired stars requires binoculars or a telescope to "split". Here's a guide to summertime doubles you can tackle with your eyes alone.
On July 5th, the Moon has a remarkably close brush with Mars, followed two nights later by a similar rendezvous with Saturn.
Two bright asteroids now appear extremely close to one another in the evening sky. Here's how to spot them in binoculars or a small telescope.
Astronomers now know the secret of this moon's strange two-faced appearance, but it's still remarkable to watch the "now you see it, now you don't" performance as it moves around Saturn.
Noctilucent clouds form at the boundary between Earth and space. Their electric blue billows incite the imagination and inspire us to keep watch at dusk for their arrival.
Since C/2012 K1's discovery two years ago, this first-time visitor from the outer solar system has brightened steadily and is now within reach of a small telescope and even binoculars.
Sky & Telescope's audio sky tour makes it easy to discover the night sky. During July, the Moon makes very close brushes with Mars and Saturn.
For anyone north of the equator, days are longest and nights shortest during June. But you can still get an eyeful of celestial sights, starting with a parade of Jupiter, Mars, and Saturn in the evening sky.
Dynamicists had predicted that Comet 209P/LINEAR would create an active meteor display in the early morning of May 24th. But reports from observers across the U.S. and Canada suggest that the Camelopardalid meteor shower was weak at best.
The dim, obscure periodic comet 209P/LINEAR is about to pass close by Earth — and bring with it a trail of debris that could make for an exciting meteor shower during the predawn hours of Saturday May 24th for North America.
Now in its 15th year, the Edgar Wilson Award recognizes comet discoveries made by amateur observers. The 2013 awards honor seven dedicated individuals who scan the skies.
Seen each year in early May, the Eta Aquariid meteors are spawned by none other than Halley's Comet. This shower is best seen before dawn's first light.
Your first view of Saturn with a telescope can introduce you to the riches of stargazing — and now is the perfect time to observe it. Saturn is entering the early evening sky this spring just as Jupiter begins its exit in the west. Here's a quick guide to spotting the ringed planet by...
The first and only annular solar eclipse of 2014 has a path that just clips Antarctica, at a location so remote that no one on Earth will get to see the event. Update: Partial phases of April 29th's solar eclipse were widely seen across the southern part of Australia. See the bottom of this...
This month you have a chance to spot four planets in the evening sky at once: Mercury, Mars, Jupiter, and Saturn. As a bonus, you might be treated to a spectacular display of meteors on the morning of May 24th.
Astronomers don't know why Jupiter's iconic Great Red Spot has been gradually shrinking since the 1800s — or why the downsizing has accelerated during the past two years. Update: On May 15th, NASA released newly taken images of the Great Red Spot (at bottom below) to show its declining size since 1995. Thanks to...
North Americans haven't seen a total eclipse of the Moon since 2011. But this long dry spell breaks late on the night of April 14–15 as the Moon makes a leisurely pass through Earth's deepest shadow.
Mars is making its nearest and brightest appearance in the night sky since the end of 2007.
It's a great month, celestially speaking: the brilliant stars of winter crowd in the southwest at nightfall, Jupiter is joined by Mars, and the first total lunar eclipse in 2½ years occurs at mid-month.
There was widespread hope that thousands of skywatchers would see the bright star Regulus briefly occulted by an asteroid early on March 20th. In the end, likely <u>no one</u> saw it. Here's why.
Bright Regulus will dramatically snap out of view behind a faint asteroid for several seconds very late Wednesday night for well-placed viewers — if the sky clears!!