A 'super-earth' discovered recently some 40 light years away could be covered with either water vapour or a thick haze, scientists have said. The planet, which is 2.6 times bigger than earth, has given scientists their first chance to analyse the atmosphere of a world outside the solar system.
Named Proxima b, the planet is in a "temperate" zone compatible with the presence of liquid water -- a key ingredient for life.
Here are some interesting facts about this newly discovered planet.
Prathmesh Kher/Rediff.com recalls how a planetary mission became interstellar in scope with the addition of a simple gold-plated disk.