Extraterrestrial life
Rob Sheldon: That “sterile exoplanet ocean” paper is bunk!
Exoplanets: Those water worlds would have sterile oceans too…
Recent finding: The “water world” exoplanets are not habitable ocean planets
Researchers: Most life-friendly planets orbiting young stars would quickly lose atmosphere
Researcher: Why finding extraterrestrial life “now seems inevitable,” maybe soon
Faint hopes easily revived! “Life may be evolving” on closest exoplanet
Forbes’ cosmology commentator: Maybe we ARE alone
Rocks on super-Earths may flow too close to the surface for life
Still no space aliens? That’s because they are keeping us in a zoo!
Some say it’s time to consider the zoo hypothesis: “They can see us but we can’t see them. The idea revisits a theory proposed in 1973 by radio astronomer John Ball: Ball went further, proposing that we may live in a metaphorical zoo — a kind of cosmic Eden. The aliens of the galaxy have somehow arranged things so that our planet is shielded from them by one-way bars: They can observe us, but we can’t observe them. One nice thing about this conjecture is that it offers a solution to a long-standing puzzle known as Fermi’s Paradox. Broached nearly 70 years ago by physicist Enrico Fermi, it rests on the fact that the universe is very old. Consequently, if Read More ›