NASA will hold a media teleconference at 1 p.m. EDT Wednesday, August 15, to discuss an extraordinary galaxy cluster that is smashing several important cosmic records.

The news comes with a big tease—information from NASA about a record-breaking galaxy—and then we won't know any more until next week!

Could it be one of these galaxies in a group?

Next Wednesday NASA will have assembled the following panelists:

• Michael McDonald, Hubble Fellow, Massachusetts Institute of Technology, Cambridge, Massachusetts
• Bradford Benson, astrophysicist, University of Chicago, Illinois
• Megan Donahue, professor of astronomy, Michigan State University, East Lansing
• Martin Rees, professor of cosmology and astrophysics, University of Cambridge, United Kingdom

The general public also can ask the panelists questions via Twitter using the hashtag #asknasa.

Audio of the teleconference will be streamed live at:

For more information about NASA's Chandra X-ray Observatory, visit as well as.