Exoplanets are planets outside our solar system. I had already prepared an X for this year’s A to Z. Then I watched this month’s Sky At Night programme on the search for life on Mars. That made me realise that
Exoplanets are planets outside our solar system. I had already prepared an X for this year’s A to Z. Then I watched this month’s Sky At Night programme on the search for life on Mars. That made me realise that