Those first seasons are ancient history, of course; the original cast are in their 70s or 80s, or have passed on.

Yet scientists hypothesized that although Venus is likely uninhabitable today, it may have been hospitable in its ancient history.

I suppose it's possible that it's ancient history to a lot of people but I kind of doubt it is for anyone over 50.

Ethiopia's prime minister Abiy Ahmed said that while the 80s original was "well-meaning at the time", it was "frustrating to see our nation’s ancient history, culture, diversity and beauty reduced to doom and gloom".

But thanks to a powerful laser-based technology called lidar, ancient history is being illuminated like never before.