Word: solarity
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...planets outside the solar system that astronomers announced last week they have discovered...
...Total known planets outside the solar system...
...fact, Europe and the rest of the world now seem determined to ratify a Kyoto agreement; the hope is that the Americans will join later. That will depend on the factor Bush considers paramount: economics. If the global market favors companies that make low-fuel automobiles, effective windmills and solar batteries, then American companies will press their government in a different direction. But how long that will take is even less easily predicted than the fretful process of global warming itself...
Shooting the Solar Breeze...
Your article on plans for a solar-sail vehicle, the world's first spacecraft to fly powered by direct solar radiation [SCIENCE, March 5], noted that the idea goes back many years but failed to mention the contribution of science-fiction writer Arthur C. Clarke. Back in 1964, he published a short story about an international race to the moon via "sun yacht." In The Wind from the Sun, Clarke detailed the competitors' various sail designs and their resultant difficulties in tacking to keep the sails facing the sun while making one orbit around the earth to gain escape velocity...