Planets!
The Sun!
Man-made Objects In Space!
Natural Objects In Space!
Cosmology and More!
100

This planet has a large amount of water on its surface and is the only planet that currently has conditions which sustain life as we know it.

What is Earth?

100
These are dark areas on the sun's surface.
What are sunspots?
100
These are human made objects which have been sent into orbit around Earth to relay communications, take pictures, and perform other tasks.
What are satellites?
100

This is the name of an asteroid built that forms a disk outside of our solar system just outside of Neptune's orbit ranging from 30-50 AU

What is the Kuiper Belt?

100

This is the name of the event associated with the creation of our universe.

What is the Big Bang?

200

Small and recently re-classified as a dwarf planet, this is the littlest planet found furthest out in our solar system.

What is Pluto?

200
The sun, and all bodies that orbit around it form this.
What is the solar system?
200
This fortress orbiting the earth is where many astronauts and researchers live. It was built by the efforts combined by many countries around the world and often has space shuttles dock with it to drop off supplies and exchange crew members.
What is the International Space Station?
200
This is a HUGE system of gas, dust, and stars. Our solar system is found at one of the far edges of it.
What is the Milky Way Galaxy?
200

This is the term used to describe matter that does not appear to interact with light but contributes significantly to the distribution of gravity in our universe. Has been observed through gravitational lensing and galaxy kinematics.

What is dark matter?

300
This is the largest planet in the solar system.
What is Jupiter?
300

Kepler's first law of motions says that the sun sits at this point in the planets orbit. 

What is the focal point?

300
This giant mechanism orbits the earth and can see things and places very far away in space. It also takes pictures which are sent back to Earth for scientists to research.
What is the Hubble Space Telescope?
300

This is a small, orbiting body made up of dust, ice, and frozen gases. The solid center of this is its nucleus, and like all objects in the solar system it orbits the sun.

What is a comet?

300

This is the temporal phenomenon that can occur to an observer when a reference frame moves close to the speed of light. 

What is time dilation?

400

This planet has shown evidence that it may have had microscopic life on it long ago.

What is Mars?

400

The two primary elements that compose main sequence stars are

What is hydrogen and helium?

400
These are the two rovers that are currently exploring and observing the surface of Mars.
What is Spirit and Opportunity?
400

This is the last (theoretical) stage of a (lower mass) star's life.

What is a black dwarf star?

400

This black hole has the mass of 66 billion solar masses.

What is Ton 618?

500

These two planets are believed to rain diamonds due to immense atmospheric pressures.

What is Neptune and Uranus?

500

The physical phenomenon that prevents the gravitational collapse of a star is called 

What is degeneracy pressure?

500

This is the lander craft that within the last decade brought two rovers to Mars to investigate.

What is The Phoenix?

500

This is the term used to describe a star is currently fusing H and He in its core; 90% of known stars fall into this category.

What is a main-sequence star?

500

This is the distance from which the accretion disk of a black hole lies from its center.

What is the Schwarchild Radius?

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