Which of the following statements about the moons of the jovian planets is not true?
A) Some of the moons are big enough that we'd call them planets (or dwarf planets) if they orbited the Sun.
B) One of the moons has a thick atmosphere.
C) Many of the moons are made largely of ices.
D) Most of the moons are large enough to be spherical in shape, but a few have the more potato-like shapes of asteroids.
Question 2
On the main sequence, stars obtain their energy
A) by converting helium to carbon, nitrogen, and oxygen.
B) from nuclear fission.
C) by converting hydrogen to helium.
D) from gravitational contraction.
E) from chemical reactions.
A true albino squirrel. Note the pink eyes.
Apparent and True Orbits of Alpha Centauri.
Orbital Motion of Earth and Other Planets
Comparing Internal Structures of the Planets
The Galilean Moons "أقمار المشتري"
Midsagittal section indicating locations of true and false pelves