How much salary cap space do the Vikings have left to work with?
The Minnesota Vikings have been very busy during the opening week of NFL free agency, signing eight players to sizable new ...
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Is it time to revisit what NASA's Viking lander found on Mars in 1976?
The most significant change since those 1970's experiments were conducted was the discovery of high levels of perchlorate on Mars. Perchlorate, plus abiotic oxidants, explains the Viking results and ...