Solar System and Celestial Objects
The model of the universe that places the Sun at the center.
the heliocentric model.
The name of a cloud of gas and dust in space.
A nebula
Radio telescopes
The movement of Earth around the Sun
A revolution
The Big Bang Theory
This force keeps planets in orbit around the Sun.
The process by which hydrogen atoms combine with other hydrogen atoms in stars.
Nuclear fusion
This type of telescope uses lenses to gather and focus light.
a refractor telescope
The reasons we experience different seasons throughout the year.
The tilt and revolution of the Earth around the sun
The shape of our galaxy
the main sequence
This term describes the leftover cloud of gas and dust after a star has died and has become a white dwarf.
A planetary nebula.
This type of telescope uses mirrors to gather and focus light
The apparent backward motion of planets as observed from Earth
Retrograde motion
This effect is used as evidence for the expansion of the universe.
Redshifting
A region in space where gravity is so strong that nothing, not even light can escape.
A black hole
A a red supergiant.
Redshifting
The phenomenon that causes high and low tides.
the gravitational pull of the Moon
The reason we have day and night
Earth's rotation
the type of star formed when the core of a red giant collapses.
a white dwarf.
A very dense celestial object that is volatile and is created in the death of a high-mass star.
A neutron star.
This type of telescope orbits above Earth's atmosphere to avoid atmospheric distortion
Space telescope
The name if the moon phase depicted on the board.
Waxing crescent.
Solar Eclipse