Posted: May 20th, 2016

what did hubble conclude when he noted that light emitted from stars is shifting toward the red end of the electromagnetic spectrum ?

1 what did hubble conclude when he noted that light emitted from stars is shifting toward the red end of the electromagnetic spectrum ?
2 compared to Earth,Jupiter
3 the fact that the position of the constellations seems to change throughout the year is evidence that ?
4 what early astronomer discovered why planets stay in their orbits ?
5 nova,sun,white dwarf,red giant which star is da brightest ?
6 as the moon moves around the earth, a person on earth dosent always see the fully lit side of the moon. This phenomenon causes ?
7 which planet would u expect to have a rocky crust and a dense core ?
8 one way in which scientist can determine the surface temperature of a staris by its ?
9 cracks in the moon s bedrock are called ?
10 the asteroid belt is located between the orbits of ?
11 why do astronomers use light years to measure distances in space ?
12 what happens during a lunar eclipse ?
13 what two characteristics of a star are plotted on the Hertzsprung Russell digram ?
14 we see only one side of the moon from earth because ?
15 what type of telescope detects energy that s outside the visible sectrum ?
16 the path n which one object trvels around another object in space is called its ?
17 what scientist first proposed that the sun is the center of the solar system ?
18 the unit light year is a measure of ?