People
The Sun
Stars
The Universe
Miscellaneous
100
One of the first people to observe objects in space using a telescope.
Who is Galileo Galilei
100
Dark areas of the sun; are cooler than the surrounding areas.
What are sunspots
100
A gigantic explosion in which a massive start collapses.
What is supernova
100
A large group of stars, dust, and gas.
What is a galaxy
100
The time required for the Earth to orbit once around the sun.
What is a year
200
Showed that all objects in the universe attract each other through gravitational force.
Who is Isaac Newton
200
The visible part of the sun we see from earth.
What is the photosphere
200
Type of magnitude that describes the actual brightness of a star.
What is absolute
200
Theory that the universe began with a tremendous explosion about 13.7 billion years ago.
What is the big bang theory
200
The point in the sky directly above an observer on Earth.
What is zenith
300
Proved that other galaxies existed beyond the edges of the Milky Way.
Who is Edwin Hubble
300
The outer atmosphere of the sun.
What is the corona
300
A star's apparent shift in position.
What is parallax
300
The shape of our galaxy - The Milky Way.
What is spiral
300
Causes day and night.
What is Earth's rotation
400
According to Newton, the force of gravity depends on the mass of the objects and _______________________.
What is the distance between them.
400
The process that gives the sun its' energy.
What is nuclear fusion
400
The final stage in a stars' life cycle.
What is white dwarf
400
Very luminous, star like objects; thought to be the most distant objects in the universe.
What is a quasar
400
Blueshift indicates a galaxy is moving _______ us.
What is towards
500
Showed that all of the planets revolve around the sun in elliptical shaped orbits.
Who is Johannes Kepler
500
All planets in our solar system orbit the sun because it is __________________________________________.
What is the most massive object in the solar system
500
Stars that can be seen at all times of night and all times of year.
What is circumpolar
500
an be used to explain how we know the universe is expanding.
What is the doppler effect
500
The Earth formed these because the heavier materials sank to the middle and the lighter ones floated to the top.
What is layers
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