space formation
inner planets
outer planets
space rock
other
100
space dust used to make up planets
planetesimal
100
planet that will crush you due to the weight of the atmosphere
venus
100
largest planet in the solar system
jupiter
100
massive space rocks
asteroid
100
pluto is now considered this
dwarf planet
200
when a planet appears to move backwards
retrograde
200
planet that is both freezing or burning depending on which side is facing the sun
mercury
200
planet known for its ring
saturn
200
smaller piece of an asteroid in space
meteoroid
200
despite the name this is actually caused by comets
meteor shower
300
the oval shape of the orbit planets travel
elipse
300
planet that used to have running water
mars
300
the CURRENT furthest planet from the sun
neptune
300
rock falling through the sky
meteor
300
belt of asteroids on the outside of the solar system
kuiper belt
400
measurement of distance that is equal to the distance between the earth and the sun
astronomical unit
400
how long is a martian day
24 hours (and 37 minutes)
400
planet that had to be "discovered" in 1781.
uranus
400
rock after it hits the ground
meteorite
400
what is 299,792,458 meters per second
the speed of light
500
planets that are not gas giants that are made out of rock
terrestrial planets
500
planet whos day is longer than its year
venus
500
the former last planet in the solar system
pluto
500
ice flying through space
comet
500
what is this
gravity formula