HL Tauri (image) National Institutes of Natural Sciences Share Print E-Mail Caption This is an artist's concept of HL Tauri. The star is surrounded by the disk (shown in red) and thick envelope. The star ejects a bipolar collimated jet. Credit Yin-Chih Tsai/ASIAA EPO 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.