the study of the universe and the earth's place in it?
What is astronomy
A huge collection of gas, dust, and billions of stars and their solar systems held together by gravity.
What is a galaxy
Planet closest to the Sun and has the shortest revolution period
mercury
A collection of gas and dust
What is a nebula
a celestial body of hot gases that radiates energy derived from solar fusion reactions in the interior
What is a star
How long it takes for the earth to make one revolution around the sun?
What is 365 and a quarter days
What is 365.25 days
A natural satellite of a planet. Inner planets have few _____ and outer planets have many _____.
What is a moon
Also called the red planet and is composed of a lot of iron oxide
mars
A collection of stars and dust gravitationally bound.
What is a galaxy
A giant cloud of dust and gas in space which can lead to the formation of a new star.
nebula
Electromagnetic wave used to see into objects and blocked by earth's atmosphere
What is an x-ray
A force of attraction between objects that is due to their masses
What is gravity
Largest planet in our solar system and has a giant red spot caused by low pressure storms
What is Jupiter
A formal collection of stars in the night sky
What is a constellation?
The stage of a star less than 8 times our sun's mass after it has expended it fuel
What is a Red Giant
Electromagnetic wave that has a long wavelength and more easily passes through a dust cloud.
What is infrared
The theory for why the solar system's inner planets are rocky, and the outer planets are made up of gas
The brightest planet in the sky and also hottest temperature planet.
What is Venus
The galaxy we reside in
What is the Milky Way
The stage of a main sequence star after it has been a red giant and after it sheds its planetary nebula
What is a white dwarf
Distance light travels in one year.
What is a light year
The direction the tail of a comet always points.
What is away from the sun
Jupiter, Saturn are __________ __________ of the solar system
What are gas giants
The term for this an exploding star
What is a supernova
The theoretical final stage of a low mass/ main sequence star
What is a black dwarf