Superfluid Helium Dark Matter Catcher (IMAGE) Brown University Caption A proposed dark matter detector using superfluid helium might detect particles with much lower mass than most current detectors. Credit Maris/Seidel/Stein/Brown University Usage Restrictions None 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.