Now You See Heat, Now You Don't (IMAGE) American Chemical Society Caption A hot object can be fully hidden from infrared detection by adding polyethylene glycol to an aerogel film. Credit American Chemical Society Usage Restrictions Please credit American Chemical Society. 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.