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?
Today In The Space World on MSN
Possible alien biosignatures detected: What Webb Telescope found on the ocean world K2-18b
The James Webb Space Telescope may have uncovered one of the most exciting clues yet in the search for extraterrestrial life.
Debunking alien claims matters, but so does telling richer, more compelling stories about how humans shaped their own past.
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