SpaceMars used to have massive flowing rivers twice as wide as Earth’s Mars is now a freezing desert, but its surface once had flowing water and it turns out its rivers were wider than those on Earth 51¶¯Âþ
Exhibition previews: Visions of a better tomorrow brighten 2019 Plug-and-play human organs, non-human intelligences and missions to Mars add speculative spice to a year of cultural events focused on the future Culture