• Question: How long has the earth lived?

    Asked by jump130day to Yuri - ESA Team on 28 Jan 2020.
    • Photo: Yuri Yushtein

      Yuri Yushtein answered on 28 Jan 2020:

      About 4.5 billion years ago, about 100 million years after the Sun formed. But then, of course, not the Earth as we see it now – just a hot ball of space dust, in the beginning.