By Definition
High Definition
Standard Definition
By Length
Full (4-12 min)
Short (1-4 min)
By Date
2021 | 2020 | 2019 | 2018
2017 | 2016 | 2015 | 2014
2013 | 2012 | 2011 | 2010
2009 | 2008 | 2007 | 2006
By Category
Solar System
White Dwarfs
Neutron Stars
Black Holes
Milky Way Galaxy
Normal Galaxies
Groups of Galaxies
Cosmology/Deep Field
Space Scoop for Kids!
Chandra Sketches
Quick Look
Visual Descriptions
How To
RSS Reader
Audio-only format podcast
Web Shortcuts
Chandra Blog
RSS Feed
Email Newsletter
News & Noteworthy
Image Use Policy
Questions & Answers
Glossary of Terms
Download Guide
Get Adobe Reader
Recent Podcast
Quick Look: Jingle, Pluck, and Hum: Sounds from Space
Quick Look: Jingle, Pluck, and Hum: Sounds from Space
A "sonification" project led by NASA's Chandra X-ray Observatory and the Universe of Learning transforms otherwise inaudible data from some of the world's most powerful telescopes into sound. (2021-09-16)

CID 1711 and CID 3083 in 60 Seconds

Narrator (April Hobart, CXC): Astronomers have recently completed a large survey of the sky using some of the powerful telescopes both on the ground and in space. This survey, known as the Cosmic Evolution Survey, or COSMOS, has revealed many results. The latest comes from a study of galaxies, both in pairs and others on their own. Researchers wanted to test whether or not close encounters between two galaxies trigger activity in the supermassive black holes at their centers. The two galaxies seen here are just samples from the thousands of galaxies they studied. The Chandra data were key because the X-rays can pinpoint just how active these black holes are. It turns out that the black holes within these galaxies are, in fact, growing more rapidly if they are in the early stages of an encounter with another galaxy. Maybe galaxies and their black holes are social after all.

Return to Podcasts