CategoryAstrobiology
Hypothesis: Yes, ET Existed — But Mainly in the Past
A recent paper introduces the idea of cryptoterrestrials, technologically advanced civilizations on Earth, perhaps from earlier geological eras, as the source of the UAPs/UFOs
Interstellar Space Travel: But Why Not Dream?
What would we need to trim the daunting energy requirement for space travel down to size? It's a challenge
Interstellar Travel: Fantasy or Destiny?
The energy required to power a spaceship to a nearby star, given current tech, is 4,800 times the total energy consumption of the United States in the year 2022
The Conviction That ET Is Out There Survives Every Setback
Because it is only natural to resist the idea that we are alone, the hope of finding extraterrestrials twists science thinking in strange ways
Extraterrestrials Are Clearly a Matter of Faith, Not Science
We can be quite sure that “They’re not out there” will never be the default hypothesis, as astrophysicist Ethan Seigel hopesAt the BBC, Pallab Ghosh had — or thought he had — the story: “Tantalising sign of possible life on faraway world.” (September 12, 2023), courtesy of the James Webb Space Telescope. A hint had been found in the data of dimethyl sulfide, produced on Earth by phytoplankton. Many writers thought that too so a number of similar stories came out. But we’re all pretty much used to the predictable next bulletin: The hope for life on planet K2-18b, 120 light years away, proved false (or anyway, premature): Based on computer models that account for the physics and chemistry of DMS, as well as the hydrogen-based atmosphere, the researchers found that it is unlikely the data show the presence of Read More ›
