A football or round shaped galaxy with no internal structure or spiral arms
What is an elliptical galaxy?
100
An average star much closer to Earth than any other star
What is the Sun?
100
Late stage in the life cycle of a massive star in which the core heats up, heavy elements form by fusion, and the star expands; can eventually explode to form a supernova
What is a super giant?
100
A rocky or icy fragment that travels through space
What is a meteroid?
100
A large cloud of gas and dust that contracts under gravitational force and breaks apart into smaller pieces, each of which might collapse to form a star
What is a nebula?
200
A galaxy with arms of bright stars, dust and gas that twist outward from the center
What is a spiral galaxy?
200
The closest star to the Sun
What is Alpha Centari?
200
A large, reddish star late in its life cycle
What is a red giant?
200
Light made by a meteoroid as it passes through Earth's atmosphere
What is a meteor?
200
The distance that light travels in a year, about 9.5 trillion kilometers
The average distance between Earth and then sun, about 150 million kilometers
What is a light year and astronomical unit?
300
A galaxy with twisting arms extending from a centralized large bar of stars and gas
What is a spiral barred galaxy?
300
The process in which atomic nuclei collide and emit a large amount of energy
What is fusion?
300
A gigantic explosion in which a massive star collapses and throws its outer layers into space.
What is a supernova?
300
The part of a large meteoroid that enters the atmosphere and strikes Earth's surface
What is a meteorite?
300
A mass of rock, ice, dust, and gase travelling around the sun in an elliptical orbit
What is a comet?
400
The smallest of galaxies and having many different shapes.
What is an irregular galaxy?
400
Final stage in the evolution of a very massive star, where the core's mass collapses to a point that its gravity is so strong that not even light can escape
What is a black hole?
400
A small, hot, dim star that is in the late stages, being the left-over center of an old star
What is a white dwarf?
400
A continuous series of meteoroids passing through Earth's atmosphere
What is a meteor shower?
400
A small, rocky object that orbits the sun, usually in a band between the orbits of Mars and Jupiter
What is an asteroid?
500
The galaxy that is closest to the Milky Way galaxy.
What is the Andromeda galaxy?
500
A graph that shows the relationship between a star's surface temperature and absolute magnitude
What is a H-R diagram?
500
The collapsed core of a supernova that contains only neutrons in the dense core
What is a neutron star?
500
A nickname for a meteor
What is a shooting star?
500
A cloud of comets found beyond the orbit of Pluto. Gravity pulls comets from here into our solar system.