Desktop Project Part 2: Unicorn, rainbow... soot?

The entire universe in blog form
March 27 2012 7:00 AM

Desktop Project Part 2: Unicorn, rainbow... soot?

[Over the past few weeks, I've collected a metric ton of cool pictures to post, but somehow have never gotten around to actually posting them. Sometimes I was too busy, sometimes too lazy, sometimes they just fell by the wayside... but I decided my computer's desktop was getting cluttered, and I'll never clean it up without some sort of incentive. I've therefore made a pact with myself to post one of the pictures with an abbreviated description every day until they're gone, thus cleaning up my desktop, showing you neat and/or beautiful pictures, and making me feel better about my work habits. Enjoy.]

Did you know there's a unicorn in the sky? There is: the constellation Monoceros (literally, one-horn). Located near Orion, when we look in that direction we're peering into the disk of our Milky Way galaxy, and that means seeing lots of gas and dust. And when you do that with a telescope like WISE that sees into the far-infared, what you get is, well, magic:

Phil Plait Phil Plait

Phil Plait writes Slate’s Bad Astronomy blog and is an astronomer, public speaker, science evangelizer, and author of Death From the Skies!  

Advertisement

This is SH2-284, a star forming nebula. The image is false color, but each hue represents a different part of the infrared spectrum. Blue and teal is mostly coming from stars, while red and yellow is dust. Green comes from a very specific kind of material called a polycyclic aromatic hydrocarbons -- long-chain carbon molecules which are essentially soot. PAHs are made in various ways, but are abundant where stars are being born, and that's what we're seeing here.

There's a cluster of young stars in the center of this cloud, and they're so hot they're eating out the inside of the cloud, creating that cavity you can see. Like so many of these structures, the clock is ticking: many of those stars will explode, and when they do they'll tear the cloud apart. So take a look while you can... this unicorn rainbow cloud only has a few million years left before it's extinct.

Image Credit: NASA/JPL-Caltech/WISE Team



Related Posts:


TODAY IN SLATE

War Stories

The Right Target

Why Obama’s airstrikes against ISIS may be more effective than people expect.

The NFL Has No Business Punishing Players for Off-Field Conduct. Leave That to the Teams.

Meet the Allies the U.S. Won’t Admit It Needs in Its Fight Against ISIS

I Stand With Emma Watson on Women’s Rights

Even though I know I’m going to get flak for it.

Should You Recline Your Seat? Two Economists Weigh In.

Medical Examiner

How to Stop Ebola

Survivors might be immune. Let’s recruit them to care for the infected.

History

America in Africa

The tragic, misunderstood history of Liberia—and why the United States has a special obligation to help it fight the Ebola epidemic.

New GOP Claim: Hillary Clinton’s Wealth and Celebrity Are Tricks to Disguise Her Socialism

Why the Byzantine Hiring Process at Universities Drives Academics Batty

Moneybox
Sept. 23 2014 3:29 PM The Fascinating Origins of Savannah, Georgia’s Distinctive Typeface
  News & Politics
History
Sept. 23 2014 11:45 PM America in Africa The tragic, misunderstood history of Liberia—and why the United States has a special obligation to help it fight the Ebola epidemic.
  Business
Moneybox
Sept. 23 2014 2:08 PM Home Depot’s Former Lead Security Engineer Had a Legacy of Sabotage
  Life
Education
Sept. 23 2014 11:45 PM Why Your Cousin With a Ph.D. Is a Basket Case  Understanding the Byzantine hiring process that drives academics up the wall.
  Double X
The XX Factor
Sept. 23 2014 2:32 PM Politico Asks: Why Is Gabby Giffords So “Ruthless” on Gun Control?
  Slate Plus
Political Gabfest
Sept. 23 2014 3:04 PM Chicago Gabfest How to get your tickets before anyone else.
  Arts
Brow Beat
Sept. 23 2014 8:38 PM “No One in This World” Is One of Kutiman’s Best, Most Impressive Songs
  Technology
Future Tense
Sept. 23 2014 5:36 PM This Climate Change Poem Moved World Leaders to Tears Today
  Health & Science
Medical Examiner
Sept. 23 2014 11:37 PM How to Stop Ebola Could survivors safely care for the infected?
  Sports
Sports Nut
Sept. 23 2014 7:27 PM You’re Fired, Roger Goodell If the commissioner gets the ax, the NFL would still need a better justice system. What would that look like?