Isaac Arthur on MSNOpinion
The ancient alien theory sounded possible - until the missing evidence became impossible to ignore
What if an alien civilization did not just exist somewhere in the universe, but actually reached Earth in the distant past?
" Project Hail Mary ", the new movie based on author Andy Weir's book of the same name, is a wild romp through the cosmos.
As an astrophysicist, my world revolves around the wonders of space and the mysteries of the universe. This means I can be a tough critic of science fiction books and films that explore these topics.
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