Once typecast as the indispensable altarpiece of a well-appointed living room, TVs have infected every human environment. The average American household has… — Seth Shostak Copy Share Image
Planets that don't currently sport plate tectonics, such as Venus and Mars, are scarcely habitable. Tectonics might be a requirement of any… — Seth Shostak Copy Share Image
The search for extra-terrestrial life is a failure until that moment when it suddenly becomes a success. — Seth Shostak Copy Share Image
If this is the only planet on which not only life, but intelligent life, has arisen, that would be very unusual. — 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
The total number of people that do a job that has the same description as mine in the entire world is fewer… — Seth Shostak Copy Share Image
The math is dead simple: it seems that the frequency of planets able to support life is roughly one percent. In other… — Seth Shostak Copy Share Image
Consider: Life arose on Earth close to four billion years ago. Four billion years of slithering, swimming, and soaring life forms. But… — Seth Shostak Copy Share Image
Mining asteroids is a well-oiled trope of science-fiction. But someday, actually doing it will make economic sense. Many of the essential metals… — Seth Shostak Copy Share Image
The overwhelming bulk of the cosmos is deathly quiet. But here and there - on worlds where matter is thick and conditions… — Seth Shostak Copy Share Image
The Earth has been lawned with life for something over 3.5 billion years. That's a span of time great enough to encompass… — Seth Shostak Copy Share Image
The Moon is a ball of left-over debris from a cosmic collision that took place more than four billion years ago. A… — 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
There is a point of view among astronomical researchers that is generally referred to as the Principle of Mediocrity. ... If the… — Seth Shostak Copy Share Image
Mars still remains the astrobiology community's number one choice for 'nearest rock with life,' but there are many researchers who argue that… — Seth Shostak Copy Share Image
The bottom line is, like, one in five stars has at least one planet where life might spring up. That's a fantastically… — Seth Shostak Copy Share Image
Even if the Moon didn't exist - even if it had been vaporized billions of years ago by cantankerous Klingons - there… — Seth Shostak Copy Share Image
It's hard to imagine anything more interesting than learning how we're woven into the enormous tapestry of existence. Where did our universe… — 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
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
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
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
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
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
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
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
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
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
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
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
The most attractive habitats for synthetic sentience might be the vicinities of exceptional sources of energy - for example black holes, or even the… — Seth Shostak Copy Share
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 neighborhoods… — Seth Shostak Copy Share
Plate tectonics is not all havoc and destruction. The slow movement of continents and ocean floors recycles carbon dioxide dissolved in the oceans back… — Seth Shostak Copy Share
