Luna 9 was the first spacecraft to soft-land on the Moon, sending the first images from the lunar surface to Earth. The Luna ...

For more than 60 years, scientists have been searching the cosmos for possible signs of radio transmission that would indicate the existence of extraterrestrial intelligence (ETI). In that time, the ...

For a number of decades, the Search for Extraterrestrial Intelligence Institute (SETI) has been combing the stars for signs of a technologically advanced civilization lurking in their midst. And ...

Forbes contributors publish independent expert analyses and insights. I cover the history of science and exploration. SETI@Home gave rise to an active online community of volunteers and enthusaists.

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It's always nice to feel useful, even if not much comes of it in the end. The millions of people who, over the past two decades, donated their home computers' processing power to the SETI@home search ...