The orbiting science laboratory begins a series of marathon passes this week that favor the northern hemisphere.
At last, a fine Mars apparition: on May 22nd the Red Planet reaches opposition, shining almost as bright as Jupiter, and the planet makes its closest approach to Earth on May 30th.
May 9th's transit of Mercury is now history. Countless amateurs — and professionals — watched as the innermost planet had its day in the Sun. It's sometimes the curse of being involved in astronomical outreach that I miss all the action during an important celestial event. For example, I never got to see Comet Shoemaker-Levy…
Join in Monday, May 9th, as tiny Mercury crosses the Sun's disk for the first time since 2006. S&T's exclusive video feeds and expert interviews will air throughout the 7½-hour event.
The littlest planet will cross the enormous Sun for viewers in most of the world.
If you'd like to see bits of debris shed by Halley's Comet, then head out before dawn during the next few days.
Sky & Telescope's astronomy podcast takes you on a guided tour of the night sky. Watch for Mars and Saturn near Scorpius before dawn and Jupiter near Leo after sunset.
Our state-of-the-art representation of the entire celestial sphere lets you explore the stars above as never before.
If you've never seen the fleet-footed planet Mercury, now is a great time to look for it in the evening sky after sunset.
It doesn't happen often, but soon you'll be able to "spot the spot" — Mercury's silhouette — as the innermost planet crosses the Sun's disk.
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.
On Sunday afternoon, April 10th, you'll see the waxing crescent Moon hanging high in a sunny blue sky if the weather is as good as we hope it'll be. Look with a telescope from nearly anywhere in North America, and you can find something else too. Somewhere in the Moon's vicinity will be 1st-magnitude Aldebaran:…
This month's astronomy podcast takes you on a guided tour of the night sky. You'll find Mars and Saturn near each other before dawn, while Jupiter and Mercury join the fading constellations of winter in the evening sky after sunset.
Two amateur videos shot early on March 17th show a brief but bright flash on the edge of Jupiter's disk. Did the King of Planets get whacked again?
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.
Skygazers thronged to Indonesia hoping to see a total solar eclipse — and most were rewarded with breathtaking views of the event.
On the morning of Wednesday, March 9th, 240 members of a Sky & Telescope cruise were treated to a spectacular total solar eclipse.
On March 9th — late on Tuesday, March 8th, in the U.S. — the Moon will completely cover the Sun. Check here for the links you'll need to see this celestial spectacle as it happens.
On March 9th, a total solar eclipse will cross parts of Sumatra, Borneo, Sulawesi, and the Pacific. Use our map to find out what you'll see at any location.
Two planets and a pretty crescent Moon gather low above the southeastern horizon before dawn on February 6th.
This week and early next will be your last chance to see five planets — six if you count Earth — at dawn.
The first days of February offer your best chance to see all of the naked-eye planets — from Mercury to Saturn — together with the Moon in the predawn sky.
A blazing-bright fireball that lit up the early evening sky on January 30th appears to have scattered meteorites near the Pennsylvania- Maryland border. Now the search is on to find them.
This month's audio sky tour starts before dawn, when you can spot all five bright planets by eye, and moves to the sparkling stars seen on winter evenings.