Science Says: A big space crash likely made Uranus lopsided
WASHINGTON (AP) — Uranus is a lopsided oddity, the only planet to spin on its side. Scientists now think they know how it got that way: It was pushed over by a rock at least twice as big as Earth.
NEW YORK (AP) — Bradford Smith, a NASA astronomer who acted as planetary tour guide to the public with his interpretations of stunning images beamed back from Voyager missions, has died.
Smith's wife, Diane McGregor, said he died Tuesday at his home in Santa Fe, New Mexico, of complications from myasthenia gravis, an autoimmune disorder. He was 86.