Our Solar System
These are the four inner planets, or terrestrial planets
What are Mercury, Venus, Earth, and Mars?
This is the galaxy in which Earth and the solar system can be found
What is the Milky Way Galaxy?
This telescope was launched into Earth orbit in 1990 and remains in operation today.
What is the Hubble telescope?
This is the distance that light travels in one year
What is a light year?
The study of the universe -- its nature, origin, and evolution
What is cosmology?
These are the four outer planets, or gas giants
What are Jupiter, Saturn, Uranus, and Neptune?
The name given to the mysterious force that's causing the rate of expansion of our universe to accelerate over time
What is dark energy?
A device used to detect electromagnetic radiation of objects in space
What is a telescope?
These types of stars burn brighter and faster than main sequence stars
What are massive stars?
The theory that the universe began as a point and has been expanding since
What is the Big Bang Theory?
This dwarf planet was once considered the ninth planet from the Sun
What is Pluto?
These galaxies have a rounded shape
What are elliptical galaxies?
A planetary surface exploration device designed to move across the solid surface on a planet or moon
What is a rover?
The shifting of color of a galaxy moving away from the Milky Way
What is red shift?
Approximately 13.7 billion years, according to the Big Bang Theory
What is the age of the Universe?
These two space objects affect the tides on Earth
What are the Sun and the Moon?
This astronomer discovered that the Andromeda galaxy was too far away to be part of the Milky Way galaxy
This probe launched in 2006 to explore Pluto and the Kuiper Belt
What is New Horizons?
Hydrostatic equilibrium is the balance between these two forces
What are gravity and gas pressure?
This is a type of universe in which the expansion will never stop
What is an open universe?
This the outermost layer of the Sun
What is the corona?
Velocity is equal to distance multiplied by Hubble's Constant
What is Hubble's Law?
This telescope launched into space in 2021 with the goal of discovering the origin of the Universe, and possible life
What is the James Webb Space Telescope (JWST)?
A star that suddenly increases greatly in brightness because of a catastrophic explosion
What is a supernova?
This is a type of universe in which expansion is halted, but the universe did not contract
What is a flat universe?