SUNSET: 
Cassini Flies Through Enceladus's Plume
On October 28th, the Cassini spacecraft took its deepest dive through the water plume spewing from the south pole of Saturn’s moon Enceladus. It passed only 30 miles (50 kilometers) above the icy surface.
Tour November's Sky: Treats at Dawn & Dusk
Bright planets are putting on a show in the predawn sky, and evenings feature a mythical horse flying upside-down across the sky.
"Top 10" Surprises from the Pluto Flyby
New Horizons' principal investigator describes the most amazing discoveries made when NASA's New Horizons spacecraft flew past Pluto last July.
DSCOVRing Earth
An innovative Earth-observing satellite now shows near-daily views of our home planet online.
The Inner Workings of Red Giant Stars
New research connects stellar pulsations to these stars’ inner, unobservable magnetic fields.
The Night of the Blazing Aurora
A group of about 40 intrepid souls from the U.S. and Australia hits pay dirt on a tour of Iceland
White Dwarf Eats Mini Planet?
Astronomers have detected debris around a white dwarf that might be from one or more disintegrating rocky planets.
Close-in Asteroid Offers Halloween Treat
The recently discovered asteroid 2015 TB145 won't come especially close to Earth on October 31st, but it's big enough to be seen in medium-size backyard telescopes.
Closest Star-shredding Black Hole
The last hurrah of a star wrenched apart by a supermassive black hole tells astronomers what the stellar crumbs are doing.
Venus-Jupiter Conjunction This Weekend!
Venus and Jupiter, the two brightest planets, draw close together in the eastern sky before dawn, creating an ever more eye-catching spectacle for skywatchers. They're in conjunction October 25 and 26.
The Curious Case of KIC 8462852
The Kepler spacecraft recorded a bunch of irregular dimmings around one of its target stars, designated KIC 8462852. No natural phenomenon explains the dips well.
How to Spot the USAF’s ‘Mini-Shuttle’
Now is the time to track the secret space plane X-37/B on its OTV-4 mission.
White House Hosts Second Astronomy Night
For the second time during his tenure, President Obama invited amateur astronomers to join him on the South Lawn for an evening of stargazing.
Searching for Exoplanets Around HL Tau
When astronomers went searching for the planets that must exist around HL Tau, they came up empty — and future searches may not fare much better.
Pluto-Charon Results Highlighted in Science
Forget the high-octane press releases. NASA's New Horizons team has detailed the mission's early results in today's issue of Science.
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.
Advanced LIGO On the Hunt
What exciting new discoveries await astronomers in the field of gravitational wave astronomy?
Geoff Marcy, Exoplanet Leader in Sexual Harassment Case, Resigns
Geoffrey Marcy, a top figure in exoplanet discovery, sexually pressured and harassed students and researchers for at least a decade.
October's Unpredictable Draconid Meteors
Watch for any slow, unusual meteors starting at nightfall tonight and tomorrow.
