Tube of Organica (IMAGE) Southwest Research Institute Caption To understand the persistent thick atmosphere on Saturn’s largest moon, SwRI worked with the Carnegie Institution for Science Laboratory to create conditions mimicking those at Titan’s rocky core. These laboratory experiments heated and pressurized tubes of organics, producing nitrogen and methane, gases necessary to maintain Titan’s atmosphere. Credit Southwest Research Institute Usage Restrictions Images/Videos may be used by the public for educational and informational purposes only. License Original 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.