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Results 1 - 3 of 3 for "u:earthsky.org" in Santa Cruz, CA
As climate changes, so does sea level. OK, but which sea's level? And how do you know what it is? There are about 330 million cubic miles of water in the world oceans today, 97% of all the water on the planet. Comment?
Instead of pulling galaxies in our universe together, gravity seems to be driving them apart. How can gravity be repulsive, when our everyday experience shows it's attractive? To explain it, we need dark energy. Comment?
Jupiter may have swept through the early solar system like a wrecking ball, destroying a first generation of inner planets before retreating into its current orbit. Jupiter is thought to have migrated inward toward the sun before retreating to its current position in the solar system. Comment?
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