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Top 10 Seth Shostak Quotes
The limitless content of our universe might be only one instance of a large (and possibly infinite) number of other universes.
Jupiter, a world far larger than Earth, is so warm that it currently radiates more internal heat than it receives from the Sun.
Sure, nobody will make a fortune if we figure out why the Big Bang happened. But just about everyone would like to know.
A practical way to travel between the stars is a must-have for space opera, and a sine qua non for our frequently vaunted future as a galactic society.
Admittedly, it would take industrial-grade chutzpah and a massive dose of malevolence for anyone to bulldoze the spot where Neil Armstrong stepped off the Eagle lander. But even innocent visits could be damaging.
The bottom line is, like, one in five stars has at least one planet where life might spring up. That's a fantastically large percentage. That means in our galaxy, there's on the order of tens of billions of Earth-like worlds.
Sure, our three-pound brains might be inadequate to understand the universe. But perhaps they're just good enough to build something that can.
Three-fourths of the universe is hydrogen, and oxygen is incredibly abundant, too. So H2O is something you can find nearly everywhere.
About the only things that are unique to Earth are our biota and our culture. If aliens ever come here, they'd most likely be either biologists or music fans. Neither one has much reason to antagonize our armed forces.
Charles Darwin sailed around the world for two years on the 'Beagle,' and he had quite a bit of interest in things like the iguanas of the Galapagos, even though they were primitive compared to your average Englishman.
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