Not that any of them are currently close to being practical, but at one time manned flight was wildly impractical, too.
"UFOs, UAPs—Whatever We Call Them, Why Do We Assume Mysterious Flying Objects Are Extraterrestrial?"
"Are we on the brink of a breakthrough in particle physics?" We'll see.
Sounds crazy to me, but, hey, let's hope.
Environmentalists: weather is not climate, you fool! Except of course when such a claim supports our story.
Note to Americans: if you think EVs are going to fix worldwide carbon dioxide emissions so long as China is banging out coal-fired power plants, guess again.
Yet again, your gut microbiome explains an awful lot about aging.
(The part that isn't attributable to chronic inflammation, that is. But then a bad microbiome and chronic inflammation could well cause each other.)
You know the drill: when in doubt, bet on Big Al and give the points.
If you are thinking about going into a small, closed room with a lot of rust, you should probably think again.
Piece about Alfred Wegener who argued, at first to much derision, that at one time all the continents were joined together.