Defining Extraterrestrial Conditions (IMAGE) Experimental Biology Caption Subjecting artificial amino acids to extreme conditions, researchers hunt for clues on what it takes to survive on other planets. Credit Claire Mammoser, Valparaiso University 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.