SUNSET: 
A Dusty Mystery Around AU Microscopii
Unexplained ripples have been found racing through a dusty disk.
India Launches First Astronomy Satellite
AstroSat launched into orbit on September 28, 2015, and will soon start returning visible, ultraviolet, and X-ray images of the universe.
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.
Charon: Cracked, Cratered, and Colorful
A fresh batch of high-resolution images from NASA's New Horizons spacecraft shows that Charon, Pluto's largest moon, has endured a lot.
New Horizons: A Billion Miles to 2014 MU69
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.
Tour October's Sky: Predawn Planet Pileup
Early risers will be treated to wonderful groupings of bright planets, and evening sky offers excellent stargazing as well.
Clocking Water's Escape from Comet 67P
Thanks to the Rosetta spacecraft, researchers can follow the cycle of water escaping from the nucleus of Comet 67P/Churyumov-Gerasimenko.
False-color Maps of Ceres
New maps from NASA’s Dawn spacecraft reveal more about both the landscape and composition of the largest asteroid.
Moon Hides Hyades, Occults Aldebaran Friday
After a late-night ramble through the Hyades cluster, the waning gibbous Moon will cover up the bright star Aldebaran for observers across North America Friday morning.
Making the Brightest, Rarest Galaxies
Some of the universe’s most luminous galaxies are also the most mysterious. New simulations shed light on how these galaxies formed.
A Look Back at the Total Lunar Eclipse
Call it a blood Moon, supermoon, harvest Moon, a portent of the apocalypse, or just a regular ol' total lunar eclipse — for those who caught a glimpse, last night's celestial event did not disappoint.
Waterlogged Salts on Mars
Scientists have confirmed that water-soaked salts likely create dark seasonal lines on Mars.
Ready for Tonight's Total Lunar Eclipse?
On the night of September 27–28, the full Moon will plunge completely through Earth's shadow for the last time until January 2018.
Watch September's Lunar Eclipse - Live Webcast!
Visit SkyandTelescope.com on the night of September 27th to watch our exclusive webcast of the last total lunar eclipse anywhere until 2018.
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.
Beautiful, Informative Maps of the Moon
A pair of poster-size lunar maps, produced by the U.S. Geological Survey, let you roam around the Moon's surface and explore the lunar landscape.
New Mid-size Black Hole
Astronomers think a bright X-ray source in the galaxy NGC 1313 is a mid-size black hole.
White Dwarf Stars with Hiccups
Observations of two cool white dwarfs show irregular outbursts in the stars’ otherwise steady rhythm of pulsations.
New Pluto Panorama Shows Jumbled Peaks
A striking, just-released image from NASA's New Horizons mission shows a crescent Pluto panorama. Dramatic backlighting accentuates the dwarf planet's surprisingly rugged mountains.
