Power Packed (IMAGE) DOE/Sandia National Laboratories Caption Sandia National Laboratories physicist Paul Davids hopes that his team's rectenna may someday replace radioisotope thermoelectric generators as the go-to compact power supply for deep space missions and other uses where you can't just go and replace the batteries. Credit Photo by Randy Montoya/Sandia National Laboratories 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.