NASA's Juno Probe Reaches Jupiter
After a 5-year-long journey, NASA's latest emissary to the largest planet in the solar system has arrived at its destination.
Newborn Exoplanets Point to Early Chaos
A recent glut of exoplanet research reveals the early chaos that helped shape planetary systems.
Ceres Bright Spot is Salty
Spectral observations by NASA’s Dawn spacecraft reveal that the dwarf planet’s mysterious beacon is made of salt.
Tour July's Sky: Planets on Parade
Sky & Telescope's astronomy podcast takes you on a guided tour of the night sky. In early evening look for Jupiter in the southwest, with Mars and Saturn embedded in Scorpius toward south.
First Chiral Molecule Discovered in Space
The discovery of a chiral molecule in space has the potential to sort out one of the biggest mysteries in the chemistry of life.
Rolf G. Meier (1953–2016)
Amateur astronomy has lost a dedicated observer and successful visual comet hunter.
Newfound Object 2016 HO3 Shares Earth's Orbit
A recently discovered asteroid plays leapfrog with Earth as they both orbit around the Sun.
Seeing Sunspots as Early Astronomers Did
Astronomers have reconstructed 18-century telescopes to observe sunspots and better understand solar cycles.
Product Videos & Demonstrations
NEAF 2016 Astronomy Equipment Videos
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.
FRIPON: A New All-Sky Meteor Network
An innovative new meteor detection network will engage researchers and the public in a search for space rocks.
Measuring the Impacts of Light Pollution
Light pollution is pervasive, and its impact on people is larger than you might think.
LIGO Detects Second Black Hole Collision
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…
The World at Night's Earth & Sky Photo Contest: The Winners
The winners of the 7th annual Earth & Sky Photo Contest highlight the fragile beauty of our heavens.
Missing Dwarf Galaxies Never Were
Astronomers may have solved the case of the Milky Way’s missing satellite galaxies. The solution? The galaxies never existed.
Solstice Brings Late Nights, Bright Sights
Celebrate the June 20th solstice, when the Sun and the full Strawberry Moon combine their powers to illuminate both day and night.
Clouds Rain Down on Black Hole
Astronomers have detected three cold gas clumps falling toward a galaxy's center — at odds with the prevailing idea for how black holes grow.
Comets Break Up and Make Up
Comet 67P/Churyumov-Gerasimenko appears to have split into two segments that briefly orbited each other and then slowly merged into a new configuration.
LISA Pathfinder Surpasses Expectations
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.
Dual Supernovae Light Up June Nights
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.
VLA Probes Deeply into Jupiter’s Atmosphere
Astronomers have new radio images of Jupiter that allow them to see deep into its atmosphere.
