20 July 2007

Carnival of Space #12 and Water in Space

The Carnival of Space #12 is hosted at Music of the Spheres blog. I have been quite impressed at the high caliber of postings that have been consistently appearing on the COS.

Centauri Dreams blog has an intriguing post on the possibility that the Kuiper Belt objects may possess more liquid water than all the water on Earth.

Wherever humans go, they will need a reliable source of water--for drinking, for making fuel, for making oxygen to breathe, and for crops--even if grown aeroponically--the most efficient means of growing crops known, water-wise.

If the lunar pole craters contain water, that would make the moon a good staging area for further advance--given its lower gravity than Earth's. If Mars contains as much water as expected, then that planet would be a good staging area for the asteroid belt and the gas giant moons. If the Kuiper Belt and the Oort Cloud are as rich as it appears they may be, they would be a good staging area for going beyond the solar system to the neighboring star systems.

Humans need to learn to live in extra-terrestrial environments, sustainably. While we can take excellent care of our home planet, we will never be perfectly safe from existential risks. So while we continue to make this planet safer and cleaner, we must also make our move outward.

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