The rover landed in Utopia Planitia ... surface — conditions that might have created a hospitable environment for life. In ...
Planetary geologists and astronomers studying Mars have known for decades that water was once likely present on the planet, after NASA's Mariner 9 ... by NASA's Curiosity rover, are known as ...
The rover landed in Utopia Planitia ... In the 1970s, NASA’s Mariner 9 and Viking 2 were the first missions to spy features that suggested the presence of an ancient ocean on Mars.