Crash Course Kids
The Ecliptic
So, what is the Ecliptic? Well, it has to do with the Zodiac constellations and our sun and how they move in relation to one another. It's kind of cool! In this episode, Sabrina chats about this imaginary line called the Ecliptic and its...
Be Smart
How Big is the Solar System?
I took a trip to one of Austin's famous moontowers so I could put the enormity of our solar system into perspective. With the help of a grapefruit, and a lot of walking, you'll get an idea of just how tiny everything is out there!!
Crash Course
Comets
Today on Crash Course Astronomy, Phil explains comets. Comets are chunks of ice and rock that orbit the Sun. When they get near the Sun the ice turns into gas, forming the long tail, and also releases dust that forms a different tail....
Curated Video
Why Do Satellites Shift from Circular to Elliptical Orbits?
New ReviewWhat happens when a satellite slows down in orbit? Learn how a small Δv transforms a circular path into an elliptical orbit, with step-by-step analysis of orbital energy, period, and arrival timing.
Curated Video
How Satellite Energy and Speed Depend on Orbit Radius
Explore how a satellite’s kinetic and potential energy change as it orbits Earth—yet its total mechanical energy stays constant. Learn why speed depends solely on orbital radius, why mass doesn’t matter, and how all this ties into...
Curated Video
Kepler’s Laws of Planetary Motion Explained
How do planets maintain their orbits around the Sun? Dive into Kepler’s three groundbreaking laws that revealed the elliptical nature of planetary orbits, their changing speeds, and the deep link to angular momentum. Perfect for AP...
Curated Video
Principal Quantum Number: The Key to Electron Shells
The principal quantum number (𝑛) is a fundamental parameter in quantum mechanics that determines the size and energy level of an electron's orbit within an atom. It is a positive integer that represents the main energy level or shell in...
Curated Video
Exploring Saturn: The Rings, Moons, and the Cassini-Huygens Mission
This video discusses the arrival of the Cassini Huygens probe at Saturn and its mission to study the planet's rings and moons. It highlights the significance of understanding Saturn's rings in relation to the formation of the planetary...
Curated Video
Bohr's Atomic Model: Electrons in Orbit
In 1913, Niels Bohr proposed an atomic model that dramatically altered our comprehension of atomic structure by establishing a novel framework for describing the arrangement and behaviour of electrons within an atom. The purpose of...
Astrum
Shocking Discoveries on Mercury
The spectacular discoveries NASA's MESSENGER made about Mercury.
Astrum
Bizarre Characteristics Of Uranus
Almost everything you could want to know about the 7th planet from the Sun, Uranus.
Veritasium
The Best Test of General Relativity (by 2 Misplaced Satellites)
A launch mishap led to the best experimental confirmation of gravitational redshift.
Astrum
The Iron Rain World Is Unlike Anything You've Seen Before
There is an exoplanet, discovered by ESO's VLT, where it rains iron. But WASP-67b is 690 light years away, how could we possibly know that?
Astrum
How a Planet with Seven Suns Proves the Universe Prefers Order
Can planets exist in multi-star systems, and what would that look like from their perspective?
Astrum
Earth's New "Moon" 101
While tiny, Earth now has a second moon, or natural satellite, named 2020 CD3. So, will we have to rewrite the text books?
Astrum
Are Two Suns Better Than One?
How much of an effect would a second Sun have on Earth? Is there a way it could work?
Science ABC
What Are Asteroids And Where Do They Come From?
Asteroids are small, rocky objects that orbit the sun, just like the rest of the planets and celestial bodies in our solar system. Although asteroids are present throughout the solar system, most of them live in the asteroid belt—a...
Science ABC
Why Are Planetary Orbits Elliptical?
Planetary orbits are elliptical because gravitational interaction over time changes the delicate balance of mass, velocity and distance from the star which otherwise keeps planetary orbit circular. For a very long time, from Ptolemy to...
Curated Video
Chaos By Mistake
How a small error in accuracy in the 19th century led to the prediction the Universe would one day fall apart – and the development of chaos theory. How small changes in dynamic systems can lead to much greater, unpredictable events....
Curated Video
The Moon - Earth’s Natural Satellite
An introduction to the Earth's moon. What makes a moon a moon? Physics - Our Solar System - Learning Points. A moon is a natural satellite. Our Moon orbits the Earth roughly every 28 days. The Moon's glow is caused by the reflection of...
Curated Video
What Are Asteroids?
How are asteroids in our Solar System formed, where are they found, and what danger do they pose to life on Earth? Physics - Our Solar System - Learning Points. Asteroids are made from rock, metal or carbon, while comets are made of rock...
Curated Video
Aiming for the Outer Planets
The use of direct and indirect proportion in navigating the Voyager spacecraft to the outer planets. Maths - Number A Twig Math Film. Reinforce and extend the learning required by the curriculum. Twig’s context films show abstract...
Curated Video
Calculus: Newton
Newton's development of calculus, and how this changed the way we describe the world. Maths - History Of Maths A Twig Math Film. Reinforce and extend the learning required by the curriculum. Twig’s context films show abstract concepts in...
Curated Video
Speed of the Earth
Even when you are standing still, you are moving through space at incredible speed. Find out how to calculate just how fast the Earth is moving. Maths - Accuracy And Proof A Twig Math Film. Reinforce and extend the learning required by...