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I’m curious. What’s the significance of the planets sharing the same plane? Isn’t that a coincidence? Robert T. DruryLos Angeles, Calif. It could be coincidence, but the plane that roughly defines the planets’ orbits may indicate the orientation of the protoplanetary disk of gas, dust, and ice that originally surrounded the young sun .–R. Cowen
- Astronomy
Hefty Discovery: Finding a Kuiper belt king
A newly discovered celestial body appears to be the largest object that scientists have found in the solar system since their detection of Pluto in 1930.
- Humans
Physics for Sale: Collectors snap up pricey historical materials
Documents detailing the rise of modern physics and Albert Einstein's development of the general theory of relativity have sold at an auction for nearly $1.8
