Asterisms appeal to our playful side but also serve as key waypoints in the sky for identifying fainter stars and constellations.
The Lunar Reconnaissance Orbiter has finally spotted the impact of the Apollo 16 booster, more than 43 years after it happened.
In winter, we face the Milky Way's anticenter, a little-explored region offering goodies for telescopes both large and small. Few give much thought to the Milky Way's anticenter, a lonely locale 180° opposite the busy metropolis of Sagittarius, where the summer Milky Way glitters like Vegas. On winter nights, Sagittarius lies behind us, hidden by Earth's bulk. Step outside around...
A look ahead to see what new and returning comets will spice up the new year.
An unexpected omnibus spending package for fiscal year 2016 raises NASA's funding.
Are we alone in the universe? Recent results don't support that conclusion, despite what the headlines say.
After a tremendously successful mission, Venus Express has orbited its last.
Musing on a long-lost Asimov gem.
China's recently launched Dark Matter Particle Explorer (DAMPE) takes the hunt for elusive dark matter to space.
Three stars that once belonged to Orion flew the coop millions of years ago, but you can catch up with them with binoculars the next clear night.
An astrobiologist comes to grips with the new cosmology results.
Bright Capella plays it close to the vest when it comes to companions, but with a good map and steady skies you can track down its dwarf binary.
Engineers executed an innovative contingency plan to save the Akatsuki spacecraft and place it in orbit around our sister planet.
Seeing Earth as a dot helps prepare us for the exoplanets.
An exciting new mission takes the hunt for gravitational waves into space.
After taking us to Comet Catalina's doorstep, the Moon covers Venus in a spectacular daytime occultation visible from most of North and Central America on Monday, December 7, 2015.
We’re causing a mass extinction now. Can we prevent the next one?
A comet’s close passage to Mars reminds us of our own vulnerability.
Is perception reality? Not when it comes to the Moon illusion. See the truth with your own eyes at the rising of the next full Moon.
S5 0716+71, a bright blazar currently in a feeding frenzy, invites you over for dinner the next clear night.
NASA's new remote observatory located on a windswept island in the mid-Atlantic provides a critical capability for tracking space junk.
Comet Catalina returns this month with naked-eye potential. Follow its every move with our guide and maps.
Travel 2.7 million light-years from home to the Pinwheel Galaxy, where we'll visit a supergiant star, an extragalactic globular cluster, and one of the largest nebulae in the known universe.
WT1190F will burn up over the Indian Ocean on November 13th, giving researchers an unprecedented opportunity to follow its path — and figure out where it came from.
Who says you need a telescope to see craters on the Moon? Here's how to find a half-dozen with just the naked eye.