Picture of the Day: A 'Pinwheel' of a Galaxy

More

m101.jpg

Twenty-one million light years from Earth is M101, also known as the Pinwheel Galaxy. The galaxy is 70 percent bigger than the Milky Way, and lies in the area of the sky that contains Ursa Major, more commonly called the Big Dipper. From end to end, the galaxy is about 170,000 light years across. The above picture, just released from the Chandra X-Ray Observatory, combines data from four of NASA's big telescopes to give a complete picture of the different light wavelengths coming from the spiral.

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)

Why Are Americans So Bad at Saving Money?

The US is particularly miserable at putting aside money for the future. Should we blame our paychecks or our psychology?


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