This week in science: Exoplanetary salt clouds, ancient families and laughter's origin - NPR

This week in science: Exoplanetary salt clouds, ancient families and laughter's origin NPR That "Pink Planet" Astronomers Found Turns Out to be a Salty Customer! Universe Today James Webb Space Telescope finds a salty surprise on famous 'Pink Planet' Space Scientists peek into the Pink Planet’s atmosphere C&EN This Famously Pink Planet Is Hiding a Surprising Secret Gizmodo