“intelligent-life” Charts
The Fermi Paradox: Where Are All The Aliens? »
There are 1,000,000,000,000,000,000,000,000 planets in the observable universe. With such an unfathomably large number of planets, it seems naïve to…
There are 1,000,000,000,000,000,000,000,000 planets in the observable universe. With such an unfathomably large number of planets, it seems naïve to…