SUNSET: 
Astronomers Predict a Supernova
For the first time, astronomers have predicted the appearance of a supernova.
Hubble Peers Inside Exoplanets' Atmospheres
Astronomers studying hot Jupiter exoplanets revealed when and how clouds form on these alien worlds.
Kepler’s Giant Exoplanet Candidates — Real or Not?
A new study shows that about half of Kepler’s giant exoplanet candidates aren’t real planets. But astronomers expected this.
Mystery Signal from a Black Hole-Powered Jet
Astronomers have spotted what appears to be a regular signal coming from the blazar PG 1553+113.
Milky Way: Young Stars in an Old Bulge
The presence of stars just 100 million years old in the Milky Way Galaxy’s central regions confirms our galaxy’s nonviolent past.
The Inner Workings of Red Giant Stars
New research connects stellar pulsations to these stars’ inner, unobservable magnetic fields.
Hubble's Stunning New Jupiter Images You Have to See
A Hubble legacy program has returned high-res pictures of Jupiter, revealing changes to the Great Red Spot and mysterious new wisps in the North Equatorial Band.
Explore Mars in Fiction and Reality
The incredibly popular novel, and now movie, The Martian draws people to the Red Planet with realistic detail. Explore the Red Planet not just in fiction but in reality with our Mars globe and map.
Is the Milky Way's Black Hole Feeding?
The answer is a tantalizing maybe. Astronomers are investigating whether an increase in the number of flares from Sgr A* are due to the recent close passage of a dusty object known as G2.
Does the Nearest Quasar Host a Black Hole Binary?
Astronomers are investigating a new technique for finding close pairs of supermassive black holes, and they might have found one in the nearest quasar.
Direct-Image Discovery of a Young Jupiter
The Gemini Planet Imager has discovered its first exoplanet, a young Jupiter still glowing with the heat of its formation.
Forming Massive Stars - Beyond the Printed Page
The cover story of the October 2015 issue features the conundrum of massive star formation: how do these stars can form at all in the hostile environment they themselves create? Here, you'll find accompanying videos.
Closest Rocky Exoplanet Discovered
Super-Earth HD 219134b is just 21 light-years away, orbiting a nearby orange star that you can see from your backyard.
Own the Sky & Telescope Collection
The digital archive of Sky & Telescope magazine is an essential resource for astronomers at any level. And this weekend only, get $25 off.
Buckyballs Solve Interstellar Mystery
Soccer ball-shaped molecules lurking in the dusty corners of the Milky Way help resolve a long-standing problem.
The Most Luminous Supernova
Astronomers have discovered an exploding star that belongs to the "superluminous" class, and it's the most luminous one ever found.
Revealing Hidden Black Holes
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.
Mapping the Outer Milky Way
Stars still embedded in their natal clouds act as signposts to map the Sagittarius-Carina, Perseus, and Outer spiral arms of the Milky Way.
Hot Jupiters: Cloudy or Clear?
New analysis of Kepler observations shows that hot Jupiters' temperatures might predict their weather report.
Spotting Andromeda Galaxy’s Giant Halo
Astronomers have detected a massive yet elusive nimbus of hot gas surrounding Andromeda Galaxy.
