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Ancient Mars Caverns May Have Captured Flood Water
2012-12-05 16:24:33

Lee Rannals for redOrbit.com — Your Universe Online Researchers have found evidence that ancient caverns on Mars may have captured enormous flood waters some 2 billion years ago. Planetary Science Institute researchers studied the terminal regions of the Hebrus Valles, which is an outflow channel that extends about 155 miles downstream from two zones of surface collapse. The Martian outflow channels are made up of some of the largest known channels in the solar system....


Word of the Day
humgruffin
  • A terrible or repulsive person.
Regarding the etymology of 'humgruffin,' the OED says (rather unhelpfully) that it's a 'made-up word.' We might guess that 'hum' comes from 'humbug' or possibly 'hum' meaning 'a disagreeable smell,' while 'gruffin' could be a combination of 'gruff' and 'griffin.'