Hubble Discovers that Milky Way Core Drives Wind at 2 Million Miles Per Hour (image) NASA/Goddard Space Flight Center Share Print E-Mail Caption Hubble maps velocity and composition of mysterious lobes expanding from our galaxy. Credit NASA, ESA, A. Fox and A. Feild (STScI) Usage Restrictions None Share Print E-Mail 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.