Comet 252P (IMAGE) NASA/Goddard Space Flight Center Caption Comet 252P/LINEAR is shown as it passed by Earth. Credit Credits: NASA, ESA, and J.-Y. Li (Planetary Science Institute) 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.