SUNSET: 
Tour June's Sky: Three Planets at Nightfall
Sky & Telescope's astronomy podcast takes you on a guided tour of the night sky. After the Sun sinks from view, enjoy watching Mars and Saturn near Scorpius in the southeast and Jupiter near Leo well up in the southwest.
Saturn's Splendid Summer Show
It's showtime for the King of the Rings! Time to get your telescope out to see and share Saturn, which comes to opposition this week.
Amateur Astro-imagers Get Ready for Juno
Planetary scientists are counting on amateur observations to enhance the results from NASA's forthcoming Juno mission.
Watch the International Space Station Marathon
The orbiting science laboratory begins a series of marathon passes this week that favor the northern hemisphere.
Follow Mars to His Double Star Lair
Let Mars be your guide to no fewer than 15 diverse and delightful double stars that pepper its path through Scorpius and Libra this opposition season.
Mars Opposition: Best Showing in a Decade
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.
Mercury's Slow Glide Across the Sun
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…
S&T Live Webcast: Transit of Mercury
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.
Mercury Transit: Everything You Need to Know
The littlest planet will cross the enormous Sun for viewers in most of the world.
Eta Aquariid Meteor Shower Reaches Its Peak
If you'd like to see bits of debris shed by Halley's Comet, then head out before dawn during the next few days.
Tour May's Sky: Jupiter Leads the Way
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.
Introducing Sky & Telescope’s Celestial Globe
Our state-of-the-art representation of the entire celestial sphere lets you explore the stars above as never before.
How to Spot Mercury in the Evening Sky
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.
Get Ready for May 9th's Transit of Mercury
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.
Up, Up, and Away with Comet 252P
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.
Crescent Moon To Cover Aldebaran
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…
Tour April's Sky: Morning & Evening Planets
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.
Another Impact on Jupiter?
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?
Comet 252P Zooms North, BA14 Grows Tail
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.
Comet PanSTARRS 2016's Historic Flyby of Earth
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.
