|
|
|
4
|
State of matter in which all atoms lose their electrons, creating a mixture of free electrons and atomic nuclei.
|
|
5
|
A short wave, high energy invisible radiation.
|
|
7
|
The theory that the Universe will go on expanding and eventually tear itself apart.
|
|
9
|
Objects that were too mall to tart the nuclear reactions that would make them glowing stars.
|
|
10
|
Study of the origin and evolution of he Univere at a whole.
|
|
13
|
An explosive death of a star.
|
|
15
|
A measure of the total amount of mat contained within an object.
|
|
|
|
|
|
|
1
|
A neutron star that emits radiation in a regular burst or pulses.
|
|
2
|
The study of matter and energy, and the ways in which these interact.
|
|
3
|
Type of matter made up of one particular atom.
|
|
6
|
A star that continually varies in brightness.
|
|
8
|
An attractive effect that any massive object has on all other massive objects.
|
|
11
|
Joining of the nuclei of atoms of lighter elements under pressure releasing huge amounts of energy.
|
|
12
|
A large assembly of stars, gas, dust, and other mate bound together by gravity.
|
|
14
|
Elementary particle with roughly the same as a proton.
|
|
|
|
