John Blackstone, CBS News San Francisco. No one fully understands the how and why of the sun's need to sneeze away huge blasts of energy such as the one now arriving. And this is a relatively low point in the cycle. More and bigger blasts are still ahead. This cracked surface they say, is evidence of huge icebergs over what appears to be an ocean of liquid water, an ocean so vast it would make Europa the real waterworld of the solar system.
Scientists say Europa appears to have all the basic requirements for life.
Some health news tonight that could improve life on THIS planet. There may be a whole new line of attack against the progressive ravages of Parkinson's Disease. In early tests on lab animals, an experimental compound appears to reverse the effects of the disease. In a normal person, neurons the electrical pathways of the brain, produce dopamine, a chemical that helps direct the body's movements. GPI-1046, a substance that promotes nerve growth, makes new pathways around the dead neurons, raising levels of dopamine and restoring near normal function.