PBS
Where Did Water Come From?
Mercury, Venus, and Mars are all super low on water – so where did ours come from and why do we have so much of it? We think our water came from a few unlikely sources: meteorites, space dust, and even the sun.
TED Talks
Garik Israelian: How spectroscopy could reveal alien life
Garik Israelian is a spectroscopist, studying the spectrum emitted by a star to figure out what it's made of and how it might behave. It's a rare and accessible look at this discipline, which may be coming close to finding a planet...
SciShow
New Surprises from the Asteroid Bennu - SciShow News
There’s nothing boring about Bennu! From its chemistry, size, shape, and spin to its extremely old age, it proves that even the smallest objects in the solar system have a bizarre and fascinating history.
SciShow
How to Make a Meteor Shower
Learn about how one Japanese startup wants to offer meteor showers on demand, and how this will affect our scientific study of the mesosphere.
Crash Course
Light
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...
Curated Video
Dalton's Vision: The Birth of Atomic Theory
In 1803, John Dalton formulated his renowned theory of atoms. The principal tenets of his theory were as follows: ₷ Atoms were thought to be the smallest, hardest, densest, and indivisible particles of matter. Every element is made up of...
Science360
Surprising Reasons Why We Need Biodiversity
The hangout covers the benefits of biodiversity—and which benefits have been scientifically tested; how biodiversity boosts innovation; and how researchers are measuring biodiversity in the face of environmental change. Guests: Bradley...
FuseSchool
Law Of Constant Composition
Learn the basics about the law of constant composition and how to apply it. The law of constant composition states that in a given chemical compound, all samples are made up of the same elements combined in the same proportions. So what...
Catalyst University
Cranial Nerve X - Vagus Nerve [Part 3] | Structure & Functions of Abdominal Branches
In this video, we explore the structure and functions of the major branches of cranial nerve IX (the vagus nerve), specifically in the abdominal cavity.
Visual Learning Systems
Topography and the Earth: Inside the Earth
This program describes the major topographical features of Earth including mountains, plains, and plateaus. Footage from throughout North America takes students to the Rocky Mountains, the plains of Iowa, and the Colorado Plateau to...
NASA
NASA | Glory: Hello Crud
This segment provides an introduction to aerosols- their varied sources, brief lifetimes, and erratic behavior. Glory's APS will help researchers determine the global distribution of aerosol particles. This unique instrument will unravel...
NASA
Small Steps, Giant Leaps: Episode 52, Mars Perseverance Rover Science Small Steps, Giant Leaps
Mars 2020 Perseverance Rover Deputy Project Scientist Katie Stack Morgan discusses science objectives of NASA’s first astrobiology-focused mission to the Red Planet.
NASA
Ocean Worlds: The Search for Life
Life as we know it requires three ingredients: energy, organic molecules, and liquid water. Astrobiology, our search for life beyond Earth, is a search for planets, dwarf planets, and moons that harbor substantial liquid water. We call...
Professor Dave Explains
Types of Matter: Elements, Compounds, and Mixtures
What's the difference between a physical change and a chemical change? What are elements, compounds, pure substances, and mixtures? So many definitions to learn! Don't worry, Professor Dave will take you through the details.
Visual Learning Systems
Minerals and Their Properties: What Is a Mineral?
This video explains the formation and identification of minerals. Major mineral groups, basic crystal systems, the physical properties of minerals, and everyday uses of minerals are discussed. Other terminology includes: inorganic,...