And yet we never hear from anyone living there. Here’s a list, just for fun, of eight possible reasons…
The Hart-Tipler conjecture (they don’t exist) is, of course, very unpopular in sci-fi. But let’s confront it, if only to move on to more promising (or maybe scarier) speculations.
As in: “For exoplanets to be superhabitable, they should be older, larger, heavier, warmer, and wetter compared to Earth, and ideally located around stars with longer lifespans than our own. So yeah, not only is Earth inferior, so too is our Sun, according to the new research.”
Researchers: Exoplanets around stars with a higher carbon to oxygen ratio than our sun are more likely to be carbon-rich. They hypothesize that these carbon-rich exoplanets could convert to diamond and silicate, if water (which is abundant in the universe) were present, creating a diamond-rich composition.
Oh for a single, solitary fossil bacterium on Mars, to make this discussion sound real…
As we’ve said here before, it is a reasonable idea. If only we could find a fossil bacterium on Mars.
There’s got a reason why so much science is beginning to sound like the National Enquirer for STEM nerds. But we are waiting for the Big Explain book to come out. Should be a classic.
At Air & Space: “There aren’t many organic silicon compounds to begin with, and silicon-based life in water, or on an oxygen-rich planet, would be all but impossible as any free silicon would react quickly and furiously to form silicate rock. And that’s pretty much the end of the story.”
But remember, the space aliens are invented gods. If we don’t locate them here, we can locate them somewhere else.
Sarah Scoles: Proper science is now more willing to embrace SETI… Don’t just ignore all the outliers as outliers, in other words: Important truth, if not whole truth, can lurk inside of them too.
So if aliens exist, they must be just like us because… evolution. This is a religion. Didn’t say it was a bad religion. But definitely a religion.
“Habitable zone” needn’t mean a whole lot. Abundant Earth is in a habitable one but so is the lifeless Moon, tidally locked.
It’s curious how space aliens are assigned to “science,” no matter what proposition is entertained with respect to them. Perhaps they reward sheer, blind faith.
Every so often the people searching for extraterrestrial life that just never seems to turn up need a pep talk. It often takes the form of “You know, we could be on the wrong track”.
Fascinating to be so sure when we have no evidence of any space aliens at all. A religion underlies this, you may be sure.