Scale of the Universe
This unit of distance measures how far light travels in a single year.
What is a lightyear
In ancient times, people believed the Sun orbited around ___
What is the Earth
This is the closest star to Earth.
What is the Sun
This is the natural satellite that orbits the Earth.
What is the Moon
Traveling at roughly 300 million m/s, this is the constant speed that electromagnetic waves move through space.
What is the speed of light
This scientist was famous for his 3 laws of orbital motion.
Who is Johannes Kepler
Patterns of stars in the night sky that form pictures, like Orion or the Big Dipper.
What are constellations
This planet is widely known for its great Red Spot.
What is Jupiter
Astronomers often use this unit, about 93 million miles, to describe the distance from the Earth to the Sun.
What is an Astronomical Unit (AU)
This scientist believed that gravity was a force.
Who is Isaac Newton
The process in a star’s core that combines hydrogen into helium, powering the star.
What is nuclear fusion
This term refers to any planet that orbits a star outside our Solar System.
What is an exoplanet
Equal to about 3.26 light years, this unit is commonly used in professional astronomy
What is a parsec
Einstein believed that objects with mass bend _____
What is spacetime
Giant clouds of gas and dust where new stars are born.
What are nebulae
These objects are remnants of massive stars and have gravity so strong that even light can't escape.
What are black holes
This is the next closest galaxy to the Milky Way.
What is the Andromeda galaxy
What is dark energy
This massive explosion is the result of a large star collapsing in on itself.
What is a supernova
This star is so dense that a single teaspoon of it weighs 10 Great Pyramids of Giza.
What is a neutron star.