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
A Tour of The Big, Bad & Beautiful Universe with Chandra
A Tour of The Big, Bad & Beautiful Universe with Chandra
To celebrate the 15th anniversary of NASA's Chandra X-ray Observatory, we have released four new images of supernova remnants. These show Chandra's ability to study the remains of supernova explosions, using images that are the sharpest available in X-ray astronomy. The images of the Tycho and G292.0+1.8 supernova remnants show how Chandra can trace the expanding debris of an exploded star. The images show shock waves, similar to sonic booms from a supersonic plane, that travel through space at speeds of millions of miles per hour. The images of the Crab Nebula and 3C58 show the effects of very dense, rapidly spinning neutron stars created when a massive star explodes. These neutron stars can create clouds of high-energy particles that glow brightly in X-rays. The image for G292 shows oxygen (yellow and orange), and other elements such as magnesium (green) and silicon and sulfur (blue) that were forged in the star before it exploded. For the other images, the lower energy X-rays are shown in red and green and the highest energy X-rays are shown in blue. (2014-07-22)


4C+29.30 in 60 Seconds

View/Listen
Narrator (Joseph DePasquale, CXC): Astronomers think that just about every galaxy contains a giant, or supermassive, black hole at their center. Sometimes the intense gravity of these black holes can be tapped to produce intense power. That's what is happening in the galaxy known as 4C+29.30, which is found some 850 million light years from Earth. By looking at this galaxy with different telescopes, astronomers can get a more complete picture. Radio data show two jets of particles that are speeding at millions of miles per hour away from the supermassive black hole. X-rays from Chandra trace the location of hot gas in the galaxy. The bright X-rays in the center of the image mark a pool of million-degree gas around the black hole. Some of this material may eventually be consumed by the black hole, and the magnetized, whirlpool of gas near the black hole could, in turn, trigger more output to the radio jet. Most of the low-energy X-rays around the black hole are absorbed by dust and gas, which is probably in the shape of a giant doughnut around the black hole. This doughnut, or torus, blocks all the optical light produced near the black hole, so astronomers refer to this type of source as a hidden or buried black hole.

Return to Podcasts