CISTAR (IMAGE) Purdue University Caption An abundant US energy resource known as shale gas could be harvested as a 'bridge fuel' until renewable technologies can be perfected. CISTAR's goal is to develop the new technologies needed to convert shale gas into transportation fuels and chemicals. (Purdue University photo) A publication-quality image is available at https://news.uns.purdue.edu/images/2017/cistar-bridge.jpg Credit (Purdue University photo) 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.