Latest Allan Hills 84001 Stories
High in the Arctic, just below Earth's north polar ice cap, a collaboration of nearly two dozen biologists, geologists, and engineers have embarked on an expedition to Mars.
It was a science fiction fantasy come true: Ten years ago this summer, NASA announced the discovery of life on Mars. Ten years later, the results have not been verified, and skeptics have found non-biological explanations for every piece of evidence that was presented.
Researchers working in the high Arctic have found similar mineral features, produced not by microbes, but by a volcano.
The current mean temperature on the equator of Mars is a blustery 69 degrees below zero Fahrenheit. Scientists have long thought that the Red Planet was once temperate enough for water to have existed on the surface, and for life to possibly have evolved. But a new study by Caltech and MIT scientists gives this idea the cold shoulder.
Panspermia -- Panspermia is a theory (more directly described as a hypothesis, as there is no compelling evidence yet available to support or contradict it) that suggests that the seeds of life are prevalent throughout the universe and life on Earth began by such seeds landing on Earth and propagating. The theory has origins in the ideas of Anaxagoras, a Greek philosopher. An important proponent of the theory was the British astronomer Sir Fred Hoyle. There is some evidence to...
- In medieval musical notation, a sign or neume denoting a shake or trill.