Cosmic Ray Puzzle - Science News

Home
News
Features
Blogs
Columns
Departments
RSS Feeds
E-mail alerts

In the February 25 Issue:

TABLE OF CONTENTS
Consciousness Emerges: Somewhere along a tangled path, sights, sounds and insights pop into awareness
Making Waves: Japanese quake gave scientists an unprecedented look at a big tsunami
Lessons from the Torpid: Hibernators have some helpful tips for keeping humans healthy

Digital Edition
Podcast
Past Issues

Cosmic ray puzzle

Text Size

Enlarge Image

Using fluorescence detector telescopes at the Pierre Auger Observatory in Argentina, astronomers say they have found evidence that many of the highest-energy cosmic rays are iron nuclei rather than protons. Another cosmic ray observatory, however, reports no sign of iron. Credit: Auger

Print
|
Comment
|
|
|
Tweet
|

Share & Save

Comments

Please alert Science News to any inappropriate posts by clicking the REPORT SPAM link within the post. Comments will be reviewed before posting.

Registered readers are invited to post a comment. To encourage fruitful discussion, please keep your comments relevant, brief and courteous. Offensive, irrelevant, nonsensical and commercial posts will not be published. (All links will be removed from comments.)

You must register with Science News to add a comment. To log-in click here. To register as a new user, follow this link.

Reader Favorites:

Drying Out
DAMSEL IN DISTRESS

SN on the Web:

Follow @sciencenewsorg