Mars orbiter hears the siren song of a salty Red Planet 'mermaid'  

 The European Space Agency's ExoMars Trace Gas Orbiter spied a salt deposit on Mars that likely indicates water once flowed there, in a region known as the "Sea of the Sirens." 

https://cdn.mos.cms.futurecdn.net/Bgvqoh2VhzAnmR8i5B5K6h.png

https://www.space.com/mars-esa-exomars-sea-of-the-sirens