Αποτελέσματα Αναζήτησης
21 ώρες πριν · Study with Quizlet and memorize flashcards containing terms like What is the geocentric view of the universe?, What produces the retrograde motion of Mars, and what geometric arrangements did Ptolemy use to explain this motion?, What major change did Copernicus make to the Ptolemaic system?
21 ώρες πριν · 1. About a trillion comets are thought to be located far, far beyond Pluto in the [Oort cloud]. 2. The bright spherical part of a comet observed when it is close to the Sun is the [coma]. 3. A comet's [plasma tail] stretches directly away from the Sun. 4. A comet's [nucleus] is the frozen portion of a comet. 5.
