National Aeronautics and Space Administration NASA What powered the Big Bang? What happens at the edge of a black hole? What is dark energy? Go directly to content
Spacer Spacer Spacer
Spacer Spacer Spacer
Spacer
NASA Spacer
+ Goddard Space Flight Center
+ Sciences & Exploration Directorate
+ Astrophysics Science Division
Spacer
Spacer
Spacer
Advanced Search
Spacer
Spacer Spacer Spacer
Spacer
+Resources   +Glossary   +Acronyms   +Site Map   +Contact Us
Spacer
Spacer Spacer Spacer
Spacer Beyond Einstein Spacer
Spacer Spacer Spacer
Spacer Spacer Spacer
Spacer
+Home Spacer +Science Spacer +Missions Spacer +Technology Spacer +Education & Outreach Spacer +Press Room
Spacer
Spacer Spacer Spacer
Spacer Blue Spacer Spacer
Spacer Spacer Spacer
Spacer

Resources

Images  Fact Sheets, Brochures, and Booklets
     bar
Images  PowerPoint Presentations
     bar
Images  Animations and Visualizations
     bar
Images  Images
     bar
Images
Get Plugins
  Plugins Needed
     bar
Images  Image Use policy
spacer
Picture of the Month
Picture of the Month
This Chandra X-ray image shows three massive star clusters, the Arches (upper center), Quintuplet (upper right), and the GC star cluster (bottom center), which is near the enormous black hole known as Sagittarius A*. The massive stars in these clusters can themselves be very bright, point-like X-ray sources, when winds blowing off their surfaces collide with winds from an orbiting companion star.

[More]
Spacer
Spacer
Spacer Spacer Spacer
Spacer
spacer +Freedom of Information Act
+Privacy Policy and Important Notices
NASA Home Page
Curator:
Responsible NASA Person:
  Pat Tyler
Phil Newman
Spacer
Spacer Spacer Spacer
Spacer Spacer Spacer