Flat spots on Saturn’s moon Titan may be the floors of ancient lake beds
New theory about the gas giant’s largest satellite may solve a 20-year-old mystery
![Titan lakes](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2020/06/061520_lg_titan_feat.jpg?fit=1028%2C579&ssl=1)
Titan has hundreds of lakes in its polar regions (shown in this radar image from NASA’s Cassini spacecraft). Decades-old data once suggested lakes should be found at the equator instead.
USGS, ASI, JPL-Caltech/NASA