By Definition
High Definition
Standard Definition
By Length
Full (4-12 min)
Short (1-4 min)
By Date
2014 | 2013 | 2012 | 2011 | 2010
2009 | 2008 | 2007 | 2006
By Category
Solar System
Stars
White Dwarfs
Supernovas
Neutron Stars
Black Holes
Milky Way Galaxy
Normal Galaxies
Quasars
Groups of Galaxies
Cosmology/Deep Field
Miscellaneous
HTE
STOP
Space Scoop for Kids!
Subscribe
How To
Apple iTunes
RSS Reader
Web Shortcuts
Chandra Blog
RSS Feed
Chandra Mobile
Chronicle
Email Newsletter
News & Noteworthy
Image Use Policy
Questions & Answers
Glossary of Terms
Download Guide
Get Adobe Reader
Recent Podcast
Tour of Sagittarius A
Tour of Sagittarius A
One of the biggest mysteries in astrophysics today is figuring out where mysterious particles called neutrinos come from. (2014-11-13)


M31 in 60 Seconds

View/Listen
Narrator (Megan Watzke, CXC): This image of M31 represents a study of six elliptical galaxies that Chandra made to determine what causes an important type of supernova. At the heart of M31, also known as the Andromeda Galaxy, Chandra detects X-rays. The X-ray glow is partially caused by the aftermath of exploded stars known as supernovas. By examining the properties of the X-rays, scientists have figured out that one class of supernovas in these galaxies, known as Type Ia, are caused when two white dwarf stars merge. Understanding how Type Ia supernovas are triggered is important, since these objects are used to measure vast distances across the cosmos.

Return to Podcasts