This person said that earth was planet
Who is Nicolaus Copernicus?
Galileo discover this on the sun
What are sunspots?
Hubble Telescope launched in 1990 is used to see what type of light
What are invisible light?
What numerical digit is gravity?
What is 9.8?
This person had their nose cut off by his cousin, but before telescopes he was able to build tools to study the location of planets
Who is Tycho Brahe?
Who came up with the idea that Earth annually orbits the sun
Who is Nicolaus Copernicus?
Spacecraft sent into outer space to explore Jupiter, Saturn, Uranus, and Neptune
What is Voyager 1 and 2?
Gravity is a force that pull objects _______ each other
What is toward?
The amount of matter in an object
What is mass?
This person created three laws of planetary motion
Who is Kepler?
All objects in the solar system travel around the sun in this kind of orbit that is not circular, but more oval shaped.
What is elliptical orbit?
A robot landed on Mars in 2004, and discovered the water was once present is called
What is Opportunity?
What is the formula for gravitational force
What is? F= Gm1m2/r2
Aristotle is the father of
What is Zoology?
Discovered Jupiter four largest moons
Who is galileo?
When a planet is closet to the sun it is called
What is perihelion?
Two spherical objects have masses of 200 kg and 500 kg. Their centers are separated by a distance of 25 m. Find the gravitational attraction between them .
What is 1568N?
This is a large rotating cloud of dust and hydrogen gas.
What is a nebula?
The theory that the sun was the center of the solar system
Who is Aristarchus?
When a planet is farthest from the sun it is called.
What is aphelion?
Name two human exploration
What is Challenger and Columbia?
This person came up with the formula for gravity
What is Isacc Newton?
This planet takes 163 Earth years (365 days = 1 Earth year) to orbit around the sun once!
What is Neptune?