stars

Question 1

how does a star form

Answer 1

nebula

Question 2

what does H and R mean in H-R diagram

Answer 2

Hertzsprung and russell

Question 3

what is our sun also known as

Answer 3

giant star

Question 4

what are the interior layers of the sun

Answer 4

core,radiation zone,convection zone

Question 5

what is the name of the surface of the sun

Answer 5

photosphere

Question 6

what is the atmosphere of the sun composed of

Answer 6

chromosphere and the corona

Question 7

are sunspots cooler than the surrounding areas

Answer 7

yes

Question 8

are sunspots permanent

Answer 8

no

Question 9

galaxy

Answer 9

a large group of stars,dust,and gas held together by gravity

Question 10

milky way

Answer 10

a huge group of stars,dust,and gas

Question 11

local group

Answer 11

a large group of galaxies

Question 12

cosmology

Answer 12

study of how the universe began, how it continues to change

Question 13

big bang theory

Answer 13

hubbles explanation for how the universe formed

Question 14

cosmic background radiation

Answer 14

the residual microwave radiation emitted when the universe was very young

Question 15

dark matter

Answer 15

an invisible form of matter that does not emit any detectable electromagnetic energy of its own

Question 16

dark energy

Answer 16

invisible form of energy that creates a repulsive force causing the universe to expand at a faster rate

Question 17

what shapes can a galaxy be

Answer 17

spiral, irregular, elliptical

Question 18

what is the name of our galaxy

Answer 18

milky way galaxy

Question 19

what shape is the milky way galaxy

Answer 19

spiral

Question 20

how many galaxies are in our local group

Answer 20

50

Question 21

what are the two largest galaxies in the local group

Answer 21

milky way Andromeda

Question 22

where are we located at in the milky way

Answer 22

in the center in one of the arms