New Horizons' principal investigator describes the most amazing discoveries made when NASA's New Horizons spacecraft flew past Pluto last July.
An innovative Earth-observing satellite now shows near-daily views of our home planet online.
New research connects stellar pulsations to these stars’ inner, unobservable magnetic fields.
A group of about 40 intrepid souls from the U.S. and Australia hits pay dirt on a tour of Iceland
Astronomers have detected debris around a white dwarf that might be from one or more disintegrating rocky planets.
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.
The last hurrah of a star wrenched apart by a supermassive black hole tells astronomers what the stellar crumbs are doing.
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 Kepler spacecraft recorded a bunch of irregular dimmings around one of its target stars, designated KIC 8462852. No natural phenomenon explains the dips well.
Now is the time to track the secret space plane X-37/B on its OTV-4 mission.
For the second time during his tenure, President Obama invited amateur astronomers to join him on the South Lawn for an evening of stargazing.
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.
Forget the high-octane press releases. NASA's New Horizons team has detailed the mission's early results in today's issue of Science.
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.
What exciting new discoveries await astronomers in the field of gravitational wave astronomy?
Geoffrey Marcy, a top figure in exoplanet discovery, sexually pressured and harassed students and researchers for at least a decade.
Watch for any slow, unusual meteors starting at nightfall tonight and tomorrow.
Aurora borealis possible October 7, 2015
Unexplained ripples have been found racing through a dusty disk.
Comet 67P’s nucleus was born when two became one.
AstroSat launched into orbit on September 28, 2015, and will soon start returning visible, ultraviolet, and X-ray images of the universe.
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.
A fresh batch of high-resolution images from NASA's New Horizons spacecraft shows that Charon, Pluto's largest moon, has endured a lot.
Planetary scientist Alan Stern continues his exclusive series of blogs with details of what awaits the New Horizons spacecraft when it reaches its next objective.
Early risers will be treated to wonderful groupings of bright planets, and evening sky offers excellent stargazing as well.