The strange bright deposits inside Occator crater on Ceres are probably from cryovolcanic eruptions that are much younger than the crater itself.
In this month's easy-to-download podcast, find out how you can spot Venus in both the evening and predawn skies.Late in March, Mercury makes an appearance.
Clear skies prevailed across Patagonia in South America, providing intrepid eclipse-chasers with beautiful views of February 26th's annular solar eclipse.
Die-hard eclipse chasers have journeyed to the Southern Hemisphere to catch a short but dramatically thin "ring" eclipse of the Sun this weekend.
Don't miss the chance to see world-class observatories by day and the amazing southern sky by night during next month's astronomy and stargazing tour in Chile.
Download our monthly astronomy podcast to spot Venus and Mars in the west — and a celestial unicorn hiding in plain sight among the stars.
No matter what your level of interest in planetary exploration, you won't want to miss S&T's live webinar on Saturday, January 28th. Hear Alan Stern's personal take on how NASA's New Horizons spacecraft got to Pluto and what we learned once it got there.
New studies offer contrasting scenarios for making the Moon. One argues for a one big splat early in solar-system history; a second envisions a score of lesser blows that built up the Moon over time; and a third suggests water was involved.
It won't be a great year for lunar eclipses, with a deep penumbral event on February 11th and a partial on August 7th. But an annular solar eclipse is observable from the Southern Hemisphere on February 26th, and a total solar eclipse crosses the continental U.S. on August 21st.
When it comes to capturing a total solar eclipse, few can match the expertise of Fred Espenak. Get valuable tips from "Mr. Eclipse" himself during S&T's live webinar on Thursday, January 12th.
Everyone enjoys the brief and sometimes dazzling streaks of light from meteors, sometimes called "shooting stars." Sky & Telescope predicts that the two best meteor showers in 2017 will be the Quadrantids in early January and the Geminids in mid-December.
Download our monthly astronomy podcast to spot Venus and Mars in the west — and two star clusters high up — after sunset.
Thanks to some timely NSF support, the American Astronomical Society is offering dozens of small grants to U.S. groups that offer outreach programs tied to the 2017 s
This beautifully detailed 6-inch globe lets you explore the amazing geology revealed by New Horizons during its historic 2015 flyby.
The red supergiant marking Orion's shoulder seems to be spinning too fast. Did it get a boost when merged with a smaller companion star 100,000 years ago?
New results from NASA's Dawn orbiter show that the largest asteroid (and acknowledged dwarf planet) must possess a global layer of water ice that lies just below its dark, dusty surface.
From humble beginnings in 2008, a simple idea — equipping libraries with loaner telescopes — has caught on across the United States.
Download our monthly astronomy podcast to track down Mercury in the evening sky. Then swing around to the east, to behold Orion, the mighty Hunter, climbing into the sk
Although relatively obscure, this modest display is the strongest meteor shower in late November. Moonless skies make them easier to pick ou
A big, nitrogen-ice-filled basin has apparently caused Pluto's entire crust to shift over time.
This year's display of Leonid meteors peaks on November 17th, but they'll be largely washed out thanks to strong interference from the Moon.
Much has been said and written about the Moon's proximity to Earth today. Is that a good thing or a bad thing?
Thanks to two aggressive search programs, the count of near-Earth asteroids has soared past the 15,000-object milestone. (None of them are likely to hit us.)
Mark your calendar for Wednesday, November 9th, when you'll get great background info and travel tips for America's coast-to-coast total solar eclipse. Maybe you've always been curious about why everyone gets excited about total solar eclipses. Maybe you're thinking about traveling to see the one next August 21st, but you're not sure where to go.…
Mars is still hanging around, and Venus is climbing higher each evening. Download our monthly astronomy podcast to get more stargazing info.