NASA's ambitious OSIRIS-REX asteroid sample return mission swings by Earth this Friday for a gravity assist en route to asteroid 101955 Bennu.
Astronomers have found what could be the closest known pair of supermassive black holes yet, orbiting each other only a light-year apart.
The exoplanet-hunting Kepler satellite has long monitored thousands of stars, but the brightest ones have largely remained out of its reach — until now.
Researchers have found strong evidence of titanium oxide in the atmosphere of a hot giant planet, adding new insights to the complex motions of these planets’ extreme atmospheres.
A new analysis maps out water across the lunar surface, revealing how its abundance changes with latitude.
After 13 years of orbiting the Saturn system, and 4.9 billion miles logged, the Cassini mission has ended, vaporized on re-entry into the ringed planet.
The Royal Observatory Greenwich has announced the winners of the 9th annual Insight Astronomy Photographer of the Year contest.
Thermonuclear power sets off a type of stellar explosion known as a classical nova. Now, new research explains the mechanisms that cause these blasts to light up.
As Cassini dives into Saturn's atmosphere this Friday, ending 13 years of exploration, expect to probe the ringed planet's mysteries as never before.
Two years after New Horizons captured the first high-resolution image of Pluto, the IAU releases official names for some of its features.
Join renowned MIT researcher Sara Seager for a fascinating behind-the-scenes look at how we're readying the technology to find and study planets like Earth
Counterfeit eclipse glasses created great confusion in the days prior to the solar eclipse. Luckily few cases of eye damage have been reported.
Two big, naked-eye sunspot groups are putting on a splendid show this week. We're also in the crosshairs for a strong geomagnetic storm and possible auroras.
A new analysis shows that nearly 100 stars buzz our solar system every million years — an effect that can hurl regular cosmic hailstorms of comets toward Earth.
Scientists and astronomy enthusiasts are coming together to celebrate two spacecraft, billions of miles beyond Earth, as they head for the stars.
Have you ever considered the idea of a cosmic velocity web? Learn more about these intriguing visualizations from the study led by Daniel Pomarède.
A large Earth-approaching asteroid, now sailing near Earth, has a lumpy shape and is accompanied by a pair of tiny moonlets.
Engineers have come up with an innovative "clockwork rover" concept designed to survive the hostile environment of Venus.
In September's astronomy podcast, you'll learn what's special about the ringed planet Saturn, now visible in the evening sky.
Astronomers and historians pinpoint the source of a 15th-century classical nova. It’s currently regathering strength.
Florence, one of the largest Earth-approaching asteroids, gets close enough to see in a small telescope this week and next. Here's how to find it.
Researchers have constructed a detailed view of the surface of red supergiant star Antares, revealing a chaotic atmosphere powered by mechanisms that are still poorly understood.
Scientists are considering whether the mysterious “force” accelerating the universe’s expansion changes with time.
We've curated a selection of some of the best pictures our readers submitted to our online gallery of the August 21 solar eclipse.
On August 21, 2017, a total solar eclipse cast its shadow across the US. Sky & Telescope was there, and we captured some of your eclipse reactions.