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 →
Lamentably, alien audiences may be frustrated by the switch to digital television. That's because the transmitter power for DTV is fairly evenly... →
Mars still remains the astrobiology community's number one choice for 'nearest rock with life,' but there are many researchers who argue... →
Mountains aren't eternal: even the most imposing massifs are smoothed away by weathering in a few hundred million years or less. Plate tectonics... →
NASA's Office of Commercial Exploration has been concerned about protecting the landing zones where humans first walked on the Moon, and one of... →
Note to academics: Aristarchus' track record of astronomical research would probably have guaranteed him tenure somewhere, if tenure had been... →
Of course, Sol is a big ball of hot gas, but one that - thanks to its endlessly boiling innards - shakes and vibrates. By studying patterns on the... →
Our computers double in capability on time scales of only a few years. It's hardly outrageous to believe that we will successfully develop... →
Planets that don't currently sport plate tectonics, such as Venus and Mars, are scarcely habitable. Tectonics might be a requirement of any world... →
'Star Trek''s genial premise is that the cosmos is flush with intelligent species, and our descendants will interact with them... →
Television is ephemeral, a fact that some will find reassuring. But earthlings will continue to pump the kilowatts into the ether. And eventually... →
The Earth has been lawned with life for something over 3.5 billion years. That's a span of time great enough to encompass some honest-to-goodness... →
The longtime standard for American TV was 525 lines from top to bottom of the image. As a practical matter, that was roughly equivalent to 350... →
The next time you check your moves in the mirror and reflect on how special you are, consider that somewhere in this universe or in another parallel... →
Seth Shostak (born July 20, 1943) is an American astronomer, currently Senior Astronomer and Director, Center for SETI research.