NASA Planetary Protection Officer Safeguards Possibility of Life on Mars

[DIGEST: NYTimes; PHYSORG; theguardian] Last month’s discovery of flowing water on Mars suggests that the planet is much more than the frozen wasteland we’ve imagined. According to NASA, the presence of flowing water significantly increases the likelihood that life did, at one time, exist on the red planet. Even more exciting is the possibility that … Continued

The Fermi Paradox, Expanded

In a casual conversation in 1950, among a number of eminent physicists of the time, Enrico Fermi asked why we haven’t found evidence of extraterrestrial life. After all, with so many billions of stars out there in the vastness of space, and an even greater number of planets, even if the chances of a planet producing … Continued



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