Seth Shostak (born July 20, 1943) is an American astronomer, currently Senior Astronomer and Director, Center for SETI research. Read full biography of Seth Shostak →
We'll be 'outsourcing' our creativity and our thought processes to manufactured components that could be inconspicuously implanted... →
While human space travel is daunting, machines - with their indefinitely long lifetimes - could travel the galaxy. It might make little difference to... →
The cosmos is three times as old as Earth. During most of creation's 14 billion year history, our solar system wasn't around. Nonetheless... →
'E.T.' was far-fetched. 'E.T.' was this wimpy-looking kid that came to Earth to pick some plants, but he came from the Andromeda... →
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.
Buying insurance is no one's idea of fun. And it's especially easy to berate something as funky-sounding as writing checks to defend our... →
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... →
As far as I can tell, the only unambiguous consequence of the claimed invasion of Earth by beings from another star system has been a nonstop torrent... →
Astronomers still can't decide what the shape of our universe is. Is it closed and finite, which is to say, is there a countable tally of all the... →
'Battleship' is not a film that Francois Truffaut would have made. Nor would any of those other namby-pamby European directors. Nope, this... →
Consider: The human genome consists of about 3.3 billion base pairs. Since there are only four types of pair, that amounts to 0.8 gigabytes of... →
Data from orbiting telescopes like NASA's Kepler Mission hint that the tally of habitable planets in our galaxy is many billion. If E.T.'s... →
Seth Shostak (born July 20, 1943) is an American astronomer, currently Senior Astronomer and Director, Center for SETI research.