New results from the Dawn orbiter show bright spots, a pyramid-shape mountain, and mysterious haze on the dwarf planet Ceres.
The famous supernova continues to transform: its necklace of hotspots is fading away as the shock wave moves further out.
Astronomers have detected what looks like auroral emission on an ultra-cool star.
Submit names for Hayabusa 2's target asteroid, 1999 JU3. Deadline is August 31st!
New images from NASA's New Horizons spacecraft reveal a bewildering array of geologic features — all carved by or into exotic ices — on the surface of Pluto.
The digital archive of Sky & Telescope magazine is an essential resource for astronomers at any level. And this weekend only, get $25 off.
The Kepler team announced today the discovery of Kepler-452b, an Earth-size planet in the “goldilocks” zone around a Sun-like star. But is it Earthlike?
Amidst all the excitement of seeing Pluto’s unique features for the first time, NASA researchers have been using unofficial names to talk science until official terms come down the pipeline.
A $100 million donation will radically speed up the search for artificial signals from the nearest million stars — and from trillions of much farther stars in the 100 nearest galaxies.
On October 15, a group of us interested in seeing auroras and in exploring Iceland will meet in Reykjavík, the capital of this unique island. Want to join us?
A proposal released earlier this month calls for a giant orbiting space telescope that may revolutionize astronomy.
Soccer ball-shaped molecules lurking in the dusty corners of the Milky Way help resolve a long-standing problem.
New images from NASA's New Horizons spacecraft reveal an ice-covered plain on Pluto that looks remarkably young and fresh.
This “Black Friday in July” only, you can save 40% off this book, as well as off most items in our online store.
Two binary systems and a fifth stellar wheel make for a rare, and so far unique, set of stars.
In a mission filled with surprises, New Horizons spacecraft has left its scientists awed by the array of landforms and compositions found on Pluto and Charon.
On June 15th a quiet black hole, V404 Cygni, suddenly flared for the first time since 1989.
New Horizons flew past Pluto and its moons earlier today, but the spacecraft stayed out of contact with Earth while finishing its historic observations.
NASA’s New Horizons spacecraft whizzed by Pluto this morning just before 8 a.m. EDT at nearly 14 km/s (31,000 mph), about 12,500 km (7,750 miles) above the surface.
With just one day remaining until New Horizons makes its historic flyby, missions scientists are amazed by the views of Pluto and Charon already in hand.
How will planetary scientists decide what to call the features they discover on Pluto and its moons?
Astronomers have discovered an exploding star that belongs to the "superluminous" class, and it's the most luminous one ever found.
The NuSTAR telescope has spied high-energy X-rays from five supermassive black holes shrouded in a thick veil of dust and gas, a test run that will lead to a better census of these hidden beasts.
Deep snow, high winds, and dropped cameras didn't stop dozens of observers in New Zealand and Tasmania from recording Pluto's occultation of a bright star on June 29th.
Astronomers are looking forward to 2018, when a young pulsar will pass through its binary star companion’s disk.