Titan's Seas Are Sand

Until a couple of years ago, scientists thought the dark equatorial regions of Titan might be liquid oceans. New radar evidence shows they are seas -- but seas of sand dunes like those in the Arabian or Namibian ...

May 04, 2006 4.6 / 5 (52) 0

Earth has warmed 0.4 C in 30 years

(PhysOrg.com) -- Half of the globe has warmed at least one half of one degree Fahrenheit (0.3 C) in the past 30 years, while half of that -- a full quarter of the globe -- warmed at least one full degree Fahrenheit ...

Dec 11, 2008 4.3 / 5 (56) 37