Picture of the Day: A Map of a Galaxy Cluster, 2.4 Billion Light Years Away

More

627369main_hubble_1600_946-710.jpg

This new image from NASA gives us a landscape (spacescape?) of a galaxy cluster known as Abell 520, some 2.4 billion light years away from Earth. Abell 520 is of interest to scientists because, in the aftermath of massive collisions of galaxy clusters, its dark matter contains fewer galaxies than scientists would predict if, as thought, galaxies and dark matter stay together even during collisions. Superimposed on the true-color image of the galaxy cluster are false-color shadings that scientists have added to illustrate hot gas (green), starlight from within the galaxies (orange), and dark matter (blue). The illustration combines data from NASA's Chandra X-ray Observatory and the Canada-France-Hawaii Telescope.

Below, recent Pictures of the Day:

Image: NASA.

Jump to comments
Presented by

Rebecca J. Rosen is a senior editor at The Atlantic, where she oversees the Business Channel. She was previously an associate editor at The Wilson Quarterly.

Get Today's Top Stories in Your Inbox (preview)

A Fascinating Short Film About the Multiverse

If life is a series of infinite possibilities, what does it mean to be alive?


Elsewhere on the web

Join the Discussion

After you comment, click Post. If you’re not already logged in you will be asked to log in or register. blog comments powered by Disqus

Video

The Death of Film

You'll never hear the whirring sound of a projector again.

Video

How to Hunt With Poison Darts

A Borneo hunter explains one of his tribe's oldest customs: the art of the blowpipe

Video

A Delightful, Pixar-Inspired Cartoon

An action figure and his reluctant sidekick trek across a kitchen in search of treasure.

Video

I Am an Undocumented Immigrant

"I look like a typical young American."

Video

Why Did I Study Physics?

Using hand-drawn cartoons to explain an academic passion

Writers

Up
Down

More in Technology

Just In