Why do we look for water when searching for extraterrestrial life?
Why is it that astrobiologists consider water a prerequisite when seeking out alien life? Steve Nerlich of Universe Today has the details. The assumption that alien biochemistries probably require liquid water may seem a little Earth-centric. But given the chemical possibilities available from the most abundant elements in the universe, even an alien scientist with…
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Steve Nerlich -- Universe Today
New laser to dazzle pirates on the high seas
Marauding pirates could soon find themselves up against a new long-range laser weapon, designed to leave them blinded, bewildered and all at sea. Although the laser will not necessarily repel determined aggressors, it should let them know that they have been spotted while still at a distance and that their quarry is ready for them.…
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Duncan Graham-Rowe -- New Scientist