Space expert tells why super-intelligent aliens never visited Earth
With 100 million stars in the Milky Way galaxy alone, and most, if not all, of them, possessing planets, the galaxy should be home to dozens of intelligent alien civilisations. So how come we haven’t seen them? For more than 70 years, scientists have been perplexed by this subject, known as The Fermi Paradox. Neil deGrasse Tyson, a leading astrophysicist,
