STARS
Are there any green stars?
NO, our eyes won't see it that way.
Is Pluto considered a planet?
Pluto is considered a dwarf planet.
Name at least 3 phases of a stars life?
Nebula, low/high mass star, red/super giant
How many planets are there our solar system?
8 planets
When do stars become more luminous?
When they expand outward, becoming red giants.
Earth.
What is it called when a star dies?
Black Dwarf
What is a planet made of?
helilum, hydrogen, water and rock
What does nuclear fission have to do with the birth of stars?
Fission is the process by which large nuclei (like Uranium) split apart releasing energy. Fusion is the joining of nuclei to make larger nuclei, with the release of energy. A ball of contracting interstellar gas becomes a star like the Sun when fusion reactions start in its center. Then, we say "a star is born."
Do all the planets in the solar system spin the same way?
No, venus and uranus spin in the opposite direction.