Planets
The third planet from the sun.
Earth
The sun is one of the largest stars in the universe. T/F
The most famous comet
Halley's Comet
Satellites are used for:
telecommunications, GPS, weather, etc.
Only this Greek believed Earth was in a sun-centred universe.
Aristarchus
Divides the inner planets from the outper planets.
Asteroid Belt
Core and atmosphere
Comets are called Dirty Snowballs because it's made of these two things
Ice and Rock
Probes are used for:
All space exploration
This European tried to prove the sun was in the center.
Nicolaus Copernicus
This planet has the most moons.
Jupiter
The sun burns hot because of what continuing process?
Hydrogen Fusion
Comets are thought to made in this place
The Oort Cloud
The first manned orbiting laboratory
Skylab
Was the first European to use telescopes to look into space.
Galileo Galilli
Spell the 7th planet from the sun.
Uranus
Creates a soft glow around the sun.
Corona
A "shooting star" is more accurately called
Meteor
Had the first successful landings on Mars.
Vikings I & II
Sir Isaac Newton
These small planets exist beyond Neptune.
Dwarf Planets
The sun, like all planets, has this in the middle
Core
In correct order, a shooting star starts as _____, becomes a _____, and ends as a _______.
Meteroid, Meteor, Meteorite
Use ______ to propell themselves out further into space.
Gravity
Classified galaxies into various categories
Edwin Hubble