A luminous globe of gas that produces its own light and heat through nuclear reaction.
What is a star?
100
Supernova
What is a star that explodes and becomes extremely luminous and full of energy?
100
Asteroid belt.
What is the region in which most asteroids orbit between Jupiter and Mars.
100
775 kilometers to 1.6 kilometers.
What is the diameter of an asteroid?
100
Our solar system is _ _ _ _ _ _ _ _ _ of the way between the center and edge of the Milky Way galaxy.
What is two thirds?
200
A meteoroid that burns up in the Earth's atmosphere.
What is a meteor?
200
Meteorite.
What is a mass of stone or metal that has reached earth from outer space; a fallen meteoroid.
200
The nebulous envelope around the nucleus of a comet.
What is a coma?
200
A theory developed in the 1920's.
What is the Big Bang theory?
200
Georges Lemaître theorized that the universe began from a single _ _ _ _ _ _ _ _ _ _ atom.
What is primordial?
300
All of space and its contents, this includes solar systems and galaxies.
What is a universe?
300
Black Hole.
What is the final stage of a supernova's evolution?
300
White Dwarf.
What is the late stage in the life cycle of a main sequence star, the core uses up its helium and its outer layers escape into space, leaving behind a hot, dense core.
300
A star's luminosity increases by about 20 magnitudes and most of the star's mass is blown away at a very high velocity during this occurrence.
What is a supernova?
300
A _ _ _ _ _ _ star is a double star with two stars in orbit around one another.
What is binary?
400
A Belgian priest who theorized that the universe began from a single primordial atom.
Who is Georges Lemaître?
400
The Big Bang Theory.
What is a theory that states that the universe began with a large explosion 10 to 20 billion years ago?
400
Variable star.
What is a star whose luminosity changes , includes stars with explosive changes (novae and supernovae) as well as cyclic changes.
400
A black _ _ _ _ _ is the final state in stellar evolution when a star has used up all of its resources and can no longer
_ _ _ _ _ _ _.
What is dwarf and radiate?
400
A nebula is an object with a _ _ _ _ _ _ _ _ _ _ appearance.
What is nonstellar?
500
100,00 light years in diameter and contains our solar system.
What is the Milky Way galaxy?
500
Galaxy (i.e. elliptical, spiral, irregular, or barred)
What is a large group of stars, dusts, and gases held together by gravity.
500
A theoretical massive object, formed at the beginning of the universe or by the gravitational collapse of a star exploding as a supernova, whose gravitational field is so intense, that no electromagnetic radiation can escape.
What is a black hole?
500
A supernova's collapsed core can shrink to about 20 kilometers.
What is the diameter of a neutron star?
500
A meteoroid is any of the small bodies, often remnants of
_ _ _ _ _ _, that travel through space.