Galaxies
whats a galaxy?
A huge mass of stars and interstellar material
what are stars?
stars are bodies of hot glowing gas
how many planets are in our solar system
8 planets
t or F can astroids have moons
True
who was the first person on the moon
neil armstrong
name one type of galaxy
elliptical,spiral,and irregular
how hot is a star's surface
90,000 degrees F
how may stars are in the solar system
1
T or F astroids can be many different colors
False
first person in space
yuri gagarin
what is our galaxy called
The milky way
what is a small star called
white dwarfs
what are Saturn's rings made up of mostly
water
what are in astroids
rich minerals and water
how fast does a rocket need to go to enter earths orbit
17,600 mph
how is a irregular galaxy made ?
when 2 galaxies collide
what is the Hertzsprung Russell diagram
its a diagram that shows how hot a star is
how long does it take for mercury to orbit the sun
3 months
T or F can astroids contain gold
True
how many earths can fit in the sun
1.3 million
how many stars are in a large galaxy
3 billion
how old is the oldest star
14 billion years old
how far is the sun from earth
93 miles
T or F can we land a spaceship on an astroid
True
how cold is space
-270 degrees Celsius