IT HAD BEEN a long year, and I needed a holiday. I was so tired I didn’t even know where to go. Just somewhere different, faraway, even exotic. I browsed online travel agencies and tourism sites until I found myself exactly where I wanted to be: at NASA’s Exoplanet Travel Bureau.

‘Scroll to take a trip outside our solar system,’ they urged, so I did. Vintage travel posters in the style of romantic US national parks advertisements from the 1930s made me long to visit an exoplanet, a planet that orbits another sun. The posters are speculations created by designers who worked closely with scientists and futurists.