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Season
Season 1 Episode
- Season 1 Introduction to Astronomy
- Season 1 Naked Eye Observations
- Season 1 Cycles in the Sky
- Season 1 Moon Phases
- Season 1 Eclipses
- Season 1 Telescopes
- Season 1 The Gravity of the Situation
- Season 1 Tides
- Season 1 Introduction to the Solar System
- Season 1 The Sun
- Season 1 The Earth
- Season 1 The Moon
- Season 1 Mercury
- Season 1 Venus
- Season 1 Mars
- Season 1 Jupiter
- Season 1 Jupiter's Moons
- Season 1 Saturn
- Season 1 Uranus & Neptune
- Season 1 Asteroids
- Season 1 Comets
- Season 1 The Oort Cloud
- Season 1 Meteors
- Season 1 Light
- Season 1 Distances
- Season 1 Stars
- Season 1 Exoplanets
- Season 1 Brown Dwarfs
- Season 1 Low Mass Stars
- Season 1 White Dwarfs & Planetary Nebulae
- Season 1 High Mass Stars
- Season 1 Neutron Stars
- Season 1 Black Holes
- Season 1 Binary and Multiple Stars
- Season 1 Star Clusters
- Season 1 Nebulae
- Season 1 The Milky Way
- Season 1 Galaxies, Part 1
- Season 1 Galaxies, Part 2
- Season 1 Gamma-Ray Bursts
- Season 1 Dark Matter
- Season 1 The Big Bang, Cosmology Part 1
- Season 1 Dark Energy, Cosmology Part 2
- Season 1 A Brief History of the Universe
- Season 1 Deep Time
- Season 1 Everything, The Universe...And Life
Crash Course Astronomy - Season 1 Episode 24 Light
8.00 12 minutes In order to understand how we study the universe, we need to talk a little bit about light. Light is a form of energy. Its wavelength tells us its energy and color. Spectroscopy allows us to analyze those colors and determine an object’s temperature, density, spin, motion, and chemical composition.
