dust

Dramatic Outburst at Rosetta’s Comet Just Days Before Perihelion

A comet on a comet? That's what it looks like, but you're witnessing the most dramatic outburst ever recorded at 67P/Churyumov-Gerasimenko by the…

9 years ago

How Do Galaxies Die?

Everything eventually dies, even galaxies. So how does that happen? Time to come to grips with our galactic mortality. Not…

9 years ago

What Makes Mars Sunsets Different from Earth’s?

Even robots can't tear their eyes from a beautiful sunset. NASA's Mars Curiosity rover pointed its high resolution mast camera…

9 years ago

As It Turns Out, We Really Are All Starstuff

“The nitrogen in our DNA, the calcium in our teeth, the iron in our blood, the carbon in our apple…

9 years ago

Surprise – Mars Has Auroras Too!

Just a day after skywatchers at mid- to upper-latitudes around the world were treated to a particularly energetic display of auroras…

9 years ago

Rosetta’s Comet Meets Charlie Brown’s “Pig-Pen”

Anyone who's ever read a Charlie Brown comic strip knows "Pig-Pen", the lovable boy who walks around in a constant cloud…

9 years ago

Revisit Halley’s Comet – Stay Up Late for This Week’s Eta Aquarid Meteor Shower

UPDATE: Watch a live webcast of the meteor shower, below, from NASA's Marshall Space Flight Center during the night of…

10 years ago

LADEE Sees Zodiacal Light before Crashing into Moon, but Apollo Mystery Remains

Sunrise over the surface of the moon: a series of star tracker images taken by LADEE Saturday, April 12. The…

10 years ago

Happy Equinox! – A Perfect Time to See the Zodiacal Light

Welcome to the first day of spring! If you have a clear night between now and April 1, celebrate the…

10 years ago

Dusty Galaxies Shine Across The Universe In New Herschel Survey

While dust is easy to ignore in small quantities (says the writer looking at her desk), across vast reaches of…

10 years ago