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?
The sci-fi movie “Disclosure Day” predicts that our reaction to intelligent alien life will be chaotic. But what does the ...
For instance, what if we really are being visited by aliens from other worlds and they turn out to be aggressive, violent, ...
Hollywood makes initiating alien contact seem much easier than it has proven to be. In E.T. the Extraterrestrial, E.T. got ...
Why do we tend to assume that UFOs are crafts carrying alien beings rather than alien beings themselves? How the UFO ...
A Soviet astronomer in the 1960s proposed a scale to classify hypothetical alien civilizations. Here’s why the framework is ...
Scientists have identified new clues that could help astronomers spot one of the most famous hypothetical alien ...
Are we alone in the universe? Consider mysterious "extraterrestrial" radio signals. Unexplained gases on other planets.
Are we alone in the universe? Consider mysterious "extraterrestrial" radio signals . Unexplained gases on other planets. Things mistaken for UFOs ...
A traditionalist Catholic nun has claimed that UFO sightings are really encounters with 'fallen angels', aligning with ...
Thus far, our search for extraterrestrial life points toward Clarke’s former point, suggesting that our little blue dot is ...
12d
We Could Seed Alien Life Elsewhere in the Universe—But We’ll Never Undo the Devastating Consequences
Could humans spread Earth life beyond our planet? Astrobiologists explain where extremophiles might survive and why the risks are enormous.
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