gas
How Do Galaxies Die?
Everything eventually dies, even galaxies. So how does that happen? Time to come to grips with our galactic mortality. Not…
Wow! Gas Bridge In The Universe Stretches 2.6 Million Light-Years Across
How the heck did all that gas get there? Researchers have discovered an astonishing amount of it bridging galaxies, stretching…
What Are Comet Tails?
Comets are renowned for their big beautiful tails that stretch across the sky. But what's in those things, anyway? And…
Keck Spots A Galaxy Fueled With Ancient Gas
"Primordial hydrogen" sounds like a great name for a band. It's also a great thing to find when you're looking…
Supermassive Black Holes Keep Galaxies From Getting Bigger
It's long been a mystery for astronomers: why aren't galaxies bigger? What regulates their rates of star formation and keeps…
ALMA Spots a Nascent Stellar Monster
Even though it comprises over 99% of the mass of the Solar System (with Jupiter taking up most of the…
A Galaxy Grows Fat on Nearby Gas
If you live in the U.S. you may be enjoying a sultry summer day off in honor of Independence Day,…
Galactic Close Call Leaves a Bridge of Gas
[/caption] An ancient passing between two nearby galaxies appears to have left the participants connected by a tenuous "bridge" of…
States of Matter
Solid, liquid, gas … those are the states of matter we're thoroughly familiar with, but what makes for a state…