Do Look Up! Could a comet really kill us all?
When it comes to catastrophic events for humans, a big nasty asteroid or comet colliding with Earth tops the chart, and several movies have exploited this scenario. The recent Netflix movie “Don’t Look Up” did that again, but as a satire and a warning. It is widely considered an allegory for climate change, but let’s consider the astronomical scenario as presented. Is such a scenario scientifically sound?