Water would have formed an ocean occupying almost half of Mars’ northern hemisphere…

“…in effect, a system which taps a portion of that biochemical energy used for microbial growth, and converts that directly into ‘urine-tricity.'”

The trustworthiness of a web page might help it rise up Google’s rankings if the search giant starts to measure quality by facts, not just links.

It remains a mystery how black holes could have grown so huge in such short time.

Rats, long believed to be the scourge that brought the Black Death to 14th-century Europe, may not be the disease-bearing scoundrels we thought they were. Scientists have shifted blame for the medieval pandemic responsible for millions of deaths to a new furry menace: giant gerbils from Asia. “Climate-driven outbreaks of Yersinia petis in Asian rodent […]