Birth of Stars
A star is born inside a cloud of dust, hydrogen and helium gasses called this.
Nebula
For most of a star's life it burns this gas as a fuel.
Hydrogen
A Red Giant star will turn into this small, hot, dense, white kind of a star when it runs out of helium gas.
White dwarf
A region of space time in which gravity is so strong that even light cannot escape.
Black hole
How bright a star APPEARS from EARTH is called [Apparent Magnitude/ Absolute Magnitude].
Apparent Magnitude
This is the process that causes stars to shine.
Nuclear Fusion
In main sequence stars like the sun, hydrogen fuses to become this gas.
Helium
A supernova occurs when this kind of star explodes.
Supergiant
The "point of no return", past which an object cannot escape the gravity of a black hole
Event horizon
The Milky Way is this kind of galaxy.
Spiral
A force of attraction between any two objects in the universe that have mass.
Gravity
In about 6 billion years, the sun will run out of hydrogen and become this kind of star.
Red giant
This kind of explosion creates all of the elements on the periodic table that are heavier than iron.
Supernova
When an object passes into a black hole and the unequal force of gravity causes it to stretch out into a long, thin shape like a strand of spaghetti.
Spaghettification
A bright star will have a [LOWER/ HIGHER] magnitude number than a dim one.
Lower
The force in a star that acts against gravity, causing expansion.
Fusion
Betelgeuse is a famous example of this kind of star.
Supergiant
The densest kind of star.
Neutron star
Found at the center of virtually all large galaxies.
Black holes
A red star is [hotter/ colder] than a blue one.
Colder
The force in a star that acts against fusion, causing contraction/ collapse.
Gravity
This element, when fused in the heart of a Supergiant, is toxic to stars.
Iron
Two possible results of supernova explosion.
Neutron star or Black hole
The point in the center of a black hole at which density and gravity become infinite.
Singularity
The three types of galaxies
Spiral, Irregular, Elliptical