Two Chinese taikonauts conducted extravehicular activities on Sunday for the first time since they entered the space station's core module Tianhe on June 17.

Russian singer Alexey Nikolaevich Parfenov and Chinese influencer Zhang Qitong sang the Russian version of the classic nursery rhyme Twinkle twinkle little star for the Tiangong space station. So what is life like in space? Here is an explainer!