alt Hacker NewsFor reference, the oldest cave drawings we know of were made by neanderthals around ~70,000 years ago [0].
[0] https://www.southampton.ac.uk/news/2018/02/neanderthals-art....
For reference, the oldest cave drawings we know of were made by neanderthals around ~70,000 years ago [0].
[0] https://www.southampton.ac.uk/news/2018/02/neanderthals-art....
Próxima Centauri is about 250 million years older than our sun. Makes it not-impossible their earth like planet had advanced entities capable of sending their own voyager towards earth. Possibly it flew by while we were still in our Mesozoic Era and all they saw were dinosaurs.