solar system
largest planet in our solar system
What is Jupiter?
innermost part of the sun
huge celestial bodies mostly made of hydrogen and helium
What are gravity and nuclear fusion?
explanation of how the Universe began
What is the Big Bang theory?
inner planets
areas that appear dark on the surface of the sun
What are sunspots?
the nearest star to Earth
phase all stars evolve up to
What is the red giant phase?
model that is similar to the Big Bang Theory
What is the raisin-bread model?
outer planets
forms a delicate white halo around the sun
What is the corona?
color of the hottest stars
What is blue?
earliest stage of a star's life
What is a protostar?
What are the Radiation and Matter Era?
only planet that has life
What is Earth?
known as the sun's surface
What is the photosphere?
a star's true brightness irrespective of its distance from Earth
What is absolute brightness?
What is the black dwarf stage?
smaller stages that occurred during the eras
What are epochs?
region between Mars and Jupiter
a constant stream of energized particles flowing outward from the sun
What is solar wind?
letters of the Morgan-Keenan System
What are O, B, A, F, G, K, and M?
two ways a massive star can go
What are neutron stars and blackholes?
ended the domination of radiation over matter
What is nucleosynthesis?