Analysis of Halo Star Movement (image) University of Groningen Share Print E-Mail Caption Left panel: different starstreams (coloured dots), the Milky Way disk (blue) and in black the rest of the halo stars, in which the horizontal cigar-shaped blob is visible. Right panel: same data, now seen form a 90 degree rotated angle. Credit Koppelman et al. Usage Restrictions with credit 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.