Dark Matter: A Primer (VIDEO) Carnegie Institution for Science This video is under embargo. Please login to access this video. To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Caption A video explaining what dark matter is anyway, and why scientists are interested in it, courtesy of John Strom and Andrew Wetzel. Credit John Strom and Andrew Wetzel Usage Restrictions With credit License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.