Hail Stone (IMAGE) Penn State Caption A hailstone found near Liberal, Kansas, on May 24, 2016 during field research that is conducted by Penn State meteorologists each spring. Credit Matt Kumjian / Penn State Usage Restrictions Non commercial use only 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.