Be Smart
Asteroids, Meteors, and Comets.... OH MY!!!
Learn about asteroids, meteors, and comets and how they can affect earth!
Crash Course Kids
The End Is Only The Beginning
It's the end of this first year of Crash Course Kids and we've learned so many things. In this episode, Sabrina takes us on a tour of some of the ideas we've talked about and how they fit into our lives. Also, what all of these ideas...
Crash Course
Jupiter
Jupiter is the biggest planet in our solar system. The gas giant is NOT a failed star, but a really successful planet! It has a dynamic atmosphere with belts and zones, as well as an enormous red spot that’s actually a persistent...
Crash Course
Saturn
Saturn is the crown jewel of the solar system, beautiful and fascinating. It is a gas giant, and has a broad set of rings made of ice particles. Moons create gaps in the rings via their gravity. Saturn has dozens of moons, including...
Crash Course
Stars
Today Phil’s explaining the stars and how they can be categorized using their spectra. Together with their distance, this provides a wealth of information about them including their luminosity, size, and temperature. The HR diagram plots...
Crash Course Kids
Super Stars (Constellations)
So, you know about stars. But what if those stars formed a super group like The Avengers? Well, then you have a Constellation! In this episode of Crash Course Kids, Sabrina chats about stars, constellations, and how humans have used...
Crash Course Kids
Constellation Location
Let's say you're looking for a specific constellation in the sky, but can't find it? That could be because you're on the wrong part of the planet to see it. In this episode of Crash Course Kids, Sabrina talks about how the Earth's...
Crash Course Kids
Everything Revolves Around You
So, why doesn't the moon just crash into the Earth? And why doesn't the Earth crash into the Sun? What are orbits exactly and why do they happen? Well, it has to do with gravity and velocity. In this episode of Crash Course Kids, Sabrina...
Crash Course
The Gravity of the Situation
In today's episode, Phil looks at how gravity plays out across the universe.
Crash Course Kids
Orbits are Odd
Last week we talked about the orbits of the Earth and our Moon. But today we're going to go a little bigger... well, a lot better. Did you know that there is a massive Black Hole at the center of our Galaxy? Or that Pluto's orbit is...
Crash Course
Moon Phases
In this episode of Crash Course Astronomy, Phil takes you through the cause and name of the Moon's phases.
TED Talks
Lucianne Walkowicz: Let's not use Mars as a backup planet
Stellar astronomer and TED Senior Fellow Lucianne Walkowicz works on NASA's Kepler mission, searching for places in the universe that could support life. So it's worth a listen when she asks us to think carefully about Mars. In this...
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...
Crash Course
Telescopes
Today Phil explains how telescopes work and offers up some astronomical shopping advice.
SciShow
We Found One of the Oldest Galaxies Ever!
Astronomers found a galaxy older than almost any we’ve ever seen before, and we have a new, faster method to use in our search for habitable planets.
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....
Crash Course
Mars
The fourth planet from the sun and the outermost of the terrestrial planets, Mars has long been a popular spot for missions and imagination. Phil walks you through the planet's topography, core, and features. We'll take a look back to...
Curated Video
NASA's DART: Redirecting An Asteroid To Protect Earth
New ReviewThe first flight mission for planetary defense, NASA's Double Asteroid Redirection Test (DART) seeks to validate a method to protect Earth from the threat of an asteroid impact. By smashing a spacecraft into the smaller member of the...
Curated Video
NASA's Habitable Worlds Observatory Will Search For Life Outside Our Solar System
New ReviewNASA’s Habitable Worlds Observatory "will draw on technologies proven by the agency’s Hubble, Webb and upcoming Roman Space Telescopes," to search for life outside our solar system, according to the Goddard Space Flight Center. Credit:...
Curated Video
Zooming Into The Site Of A Double Detonation Supernova
New ReviewAstronomers have obtained the first visual evidence of a white dwarf that exploded not once but twice. Credit: ESO
The Daily Conversation
Solving the Space Debris Problem
New ReviewThe problem of space debris is solvable if we work together.
The Daily Conversation
NASA Finds Most Earth-Like Planet Yet
New ReviewResearchers have discovered the most similar planet yet to Earth, 1,400 light-years away. Kepler-452b orbits its star in 385 days, just 20 days longer than our own year. Its star is just 4% larger, a billion and a half years older, and...
The Daily Conversation
Albert Einstein's Gravitational Waves Discovered
New ReviewScientists have confirmed Albert Einstein's 100 year-old theory of gravitational waves, detected using a massive system of instruments called the Laser Interferometer Gravitational-wave Observatory (LIGO).