A century ago, scientists believed there was only one obvious stomping ground for alien biology in our solar system: Mars. Because it… — Seth Shostak Copy Share Image
The fact that we can't easily foresee clues that would betray an intelligence a million millennia farther down the road suggests that… — Seth Shostak Copy Share Image
Clearly, enriching the cosmos with heavy elements takes a while. So there's inevitably an interval between the sterile aftermath of the Big… — Seth Shostak Copy Share Image
Our retinas and brains have been wired by a hundred million years of evolution to find outlines in a visually complex landscape.… — Seth Shostak Copy Share Image
We haven't yet found a speck of evidence for biology on another world, so we have no objective way to judge whether… — Seth Shostak Copy Share Image
We've accounted for 95 percent of all the stars in the Milky Way. The other 5 percent are big, bright stars -… — Seth Shostak Copy Share Image
Despite tantalizing suggestions of fossilized microbes in meteorites, puzzling and possibly biogenic methane gas in the martian atmosphere, and a long-standing controversy… — Seth Shostak Copy Share Image
Diminutive worlds are more likely to be rocky, and lapped by oceans and atmospheres. In the vernacular of 'Star Trek,' these would… — Seth Shostak Copy Share Image
The cosmos is three times as old as Earth. During most of creation's 14 billion year history, our solar system wasn't around.… — Seth Shostak Copy Share Image
It will be the mother of all telescopes, and you can bet it will do for astronomy what genome sequencing is doing… — Seth Shostak Copy Share Image
Studying Sol's interior by looking for analogous patterns on its incandescent face is known as helioseismology, an active - if largely unpronounceable - research… — Seth Shostak Copy Share Image
Some pundits have proposed that the aliens have come here to breed with us. Apparently, too much bike riding or something similar has rendered… — Seth Shostak Copy Share Image
As far as I can tell, the only unambiguous consequence of the claimed invasion of Earth by beings from another star system has been… — Seth Shostak Copy Share Image
Look, science is hard, it has a reputation of being hard, and the facts are, it is hard, and that's the result of 400… — Seth Shostak Copy Share Image
Give consideration to the fact that alien astronomers could have scrutinized Earth for more than 4 billion years without detecting any radio signals, despite… — Seth Shostak Copy Share Image
In a movie, it's often important to have aliens whose gestures and facial expressions can be 'read' by humans. And in the days before… — Seth Shostak Copy Share Image
Sure, nobody will make a fortune if we figure out why the Big Bang happened. But just about everyone would like to know. — Seth Shostak Copy Share Image
If you could drive straight down, into a tunnel bored through the crust of the planet, you'd hit this molten mess in about an… — Seth Shostak Copy Share Image
While I have always thought that the motivation for looking for E.T. was both self-evident and patently worthy, it's possible that I'm a victim… — Seth Shostak Copy Share Image
I studied Latin in high school, and I was reading stuff from Cicero. And that signal took a few thousand years to get to… — Seth Shostak Copy Share Image
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… — Seth Shostak Copy Share Image
This plucky NASA telescope is able to find planets en masse. If you compare planet hunting to prospecting for gold, then Kepler is equivalent… — Seth Shostak Copy Share Image
