A recently discovered asteroid plays leapfrog with Earth as they both orbit around the Sun.
Astronomers have reconstructed 18-century telescopes to observe sunspots and better understand solar cycles.
Former S&T editor Dennis di Cicco interviews several vendors about their newest products - watch and find out full details on new lines of astronomy equipment.
An innovative new meteor detection network will engage researchers and the public in a search for space rocks.
Light pollution is pervasive, and its impact on people is larger than you might think.
The gravitational wave observatory has detected a second event, heralding a new era in astrophysics. The day after Christmas last year, the cosmos quietly gifted scientists with gravitational waves — ripples in the fabric of spacetime – produced in a collision between two stellar-mass black holes. It’s the second event detected by physicists working with…
The winners of the 7th annual Earth & Sky Photo Contest highlight the fragile beauty of our heavens.
Astronomers may have solved the case of the Milky Way’s missing satellite galaxies. The solution? The galaxies never existed.
Celebrate the June 20th solstice, when the Sun and the full Strawberry Moon combine their powers to illuminate both day and night.
Astronomers have detected three cold gas clumps falling toward a galaxy's center — at odds with the prevailing idea for how black holes grow.
Comet 67P/Churyumov-Gerasimenko appears to have split into two segments that briefly orbited each other and then slowly merged into a new configuration.
First science results from ESA's LISA Pathfinder mission exceed expectations, with five times the sensitivity. This result paves the way for a future full-scale gravitational wave observatory in space.
Supernovae are popping up everywhere! Two stars flamed out millions of years ago and at least one is an easy catch right now in amateur telescopes.
Astronomers have new radio images of Jupiter that allow them to see deep into its atmosphere.
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. If you live in the Northern Hemisphere, June is a minimalist month for stargazing because…
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.
Astronomers re-analyzed two-year-old data from the ALMA observatory in Chile and discovered gas gaps that probably indicate baby planets in the disk around a young star.
The Kavli Foundation hosted a Q&A with three astronomers to probe the recent discovery of hard-to-produce heavy elements in a nearby dwarf galaxy. The discovery sheds light on stellar histories and galactic evolution.
Astronomers discover a vast collection of young galaxies from the early universe.
A galaxy in the midst of a merger isn’t forming stars, even though it could. Astronomers think the galaxy’s central black hole might be the reason why.
A high-resolution ALMA image of the HR 8799 planetary disk suggests undiscovered planet.
Planetary scientists are counting on amateur observations to enhance the results from NASA's forthcoming Juno mission.
A Kuiper Belt object discovered nearly a decade ago turns out to be much darker — and thus larger — than thought. It's also an especially slow spinner.
The orbiting science laboratory begins a series of marathon passes this week that favor the northern hemisphere.
During two Martian years, Curiosity tracks seasonal patterns in atmosphere, temperature, and maybe even methane.