Scientists believe that a very long time ago, Mars was not all that different from Earth. It had water — and probably a decent little atmosphere, to boot. So what might it have looked like a few billion years ago?
It goes without saying that 2016 hasn’t been the greatest year, claiming artists and actors that will leave us reeling well after the calendar flips. But 2017 brings a fresh start— and as NASA points out — some very exciting space projects.