Tuesday, June 26, 2012

Does Jupiter Have More Water Than NASA's Galileo Detected?

I think that the 50 years of space exploration shows that we are most interested in life that is somewhat like us, in settings we can understand. Bacteria on Mars ? Fish on Europa ? Yes, launch the spacecraft! Floating life at 40 km altitude on Venus or in the clouds of Jupiter or Saturn ? Not so much. And, yet, the atmospheres of both Venus and Jupiter show signs of being out of chemical equilibria, the essential signature of a biological system.

People need to understand how slowly we are exploring the solar system. Yes, substantial progress is being made, but it is taking a long time to settle even the most basic questions. Ones that are rated secondary (such as life on Jupiter) could take a century or more to address.

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