Galaxy survey sheds light on dark matter | Science News



Support credible science journalism.

Subscribe to Science News today.


Galaxy survey sheds light on dark matter

11:20am, January 2, 2002

By looking at some of the brightest objects in the universe, astronomers are learning new details about its darkest stuff.

Known as dark matter because it emits no light, this substance accounts for at least 90 percent of the mass of the cosmos. Astronomers hold that dark matter keeps each galaxy intact, holds galaxy clusters together, and originally prompted gas and dust to coalesce into galaxies.

This article is available only to subscribing members. Join the Society today or Log in.

Get Science News headlines by e-mail.

More from Science News

From the Nature Index Paid Content