Light can be a type of pollution. Learn about the damage it causes to people and living things as well as how you can prevent it.
Astronomy
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Do you like to look at the stars? What can you identify in the night sky? Try finding some important constellations tonight!
Learn about telescopes, how they work & why they're important to astronomers.
Hubble Space Telescope as seen during a servicing mission in 2009 (NASA)
Some astronomers are not looking for stars, planets or galaxies. They are searching for intelligent life in the universe beyond our planet.
Learn about the history of telescopes and the function of refracting and reflecting optical telescopes.
Learn about radio astronomy, a type of astronomy that studies objects in space using radio waves and radio telescopes.
In 2019, scientists discovered that our galaxy, the Milky Way, is not the shape they thought it was. How do astronomers use astronomical distance to understand the shapes of galaxies?