Light
The part of the electromagnetic spectrum we can see.
What is visible light?
This is the type of nuclear action in the Sun.
What is nuclear fusion?
Our Sun is this type of star.
What is a main-sequence star?
These early telescopes bent light into an eyepiece using lenses.
What are refracting telescopes?
This is the most abundant element in the universe.
What is hydrogen?
The part of the electromagnetic spectrum we use sunscreen for protection against.
What is ultraviolet (UV) radiation?
This outer most layer of the Sun.
What is the corona?
The hottest stars burn this color.
What is blue?
Developed by Sir Isaac Newton, these telescopes gathered much more light with mirrors.
What are reflecting telescopes?
Stars cluster and gather to form these.
What are galaxies?
This is the part of the EM spectrum we see our bones with.
What are X-rays?
The sphere or layer of the Sun above the photosphere.
What is the chromosphere?
Stars are catalogued on this chart.
What is the Hertzsprung-Russell (H-R) chart?
The largest telescopes in the world, some 900 feet across, gather this part of the EM spectrum.
What are radio telescopes?
It is now known that most stars or star systems have these orbiting them.
What are planets and exoplanets?
This is the largest band of the EM spectrum.
What are radio waves?
The layer or sphere of the Sun that give us light.
What is the photosphere?
Our Sun will next become this type of star in a few billion years.
What is a Red Giant?
The most known and successful space-based telescope.
What is the Hubble Space Telescope?
Stars that are moving rapidly away from us appear to be more red than they really are due to this effect.
What is the doppler effect or doppler shift?
These rays are the most energetic of the EM spectrum.
What are gamma rays?
Streams of particles and electrons emitted from the Sun.
What is the solar wind?
A type of star so hot we cannot see it.
What is a black hole?
Several radio telescopes can function as one in this configuration.
What is a telescope array?
These supermassive objects are thought to be at the center of most galaxies.
What are supermassive black holes?