Astronomers have found that a massive filament of gas in the early universe actually seems to be a humongous, galaxy-forming disk.
Students captured some amazing videos of near-Earth asteroids this past month, demonstrating a powerful tool for learning about some of our nearest celestial neighbors.
Super-Earth HD 219134b is just 21 light-years away, orbiting a nearby orange star that you can see from your backyard.
It sounds like science fiction, but it's not: NASA's New Horizons mission explored the Pluto system this summer!
Astronomers have confirmed the existence of an exoplanet found via microlensing — the first time they’ve been able to successfully follow up on this method.
On Earth, wind can transform entire landscapes - turns out the same is true in space. Galaxy NGC 4921 faces an intracluster wind that's eroding its star-forming terrain.
If you want to do some casual stargazing this month, you'll get great views of Scorpius and Saturn in the south — and the impressive Perseid meteor shower.
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.