Comment by b3lvedere

A large enough object coming close enough to our planet could also do that.

Humans have and will continue to destroy lots of living and non-living material. Unless some huge global awareness or higher sentience will reduce that immensly very quickly, humanity as we know it, will end on this planet. With the rising CO2 levels i doubt our intelligence will get any better.

And the planet will quietly do its dance around its star..