Earth, as seen by Cassini's radar. In order to understand what landforms on Titan could be seen by Cassini's radar, researchers looked at well-known Earth landforms through Cassini's perspective. The ...

This image shows the relative size of the Earth and Sun next to those of HD 97658 (the star) and HD 97658b (the super-Earth exoplanet). Disclaimer: AAAS and EurekAlert! are not responsible for the ...