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Digital Studios: Crash Course Astronomy

Welcome to school without the classroom! Join host Phil Plait and discover everything there is to know about the cosmos.

Episodes

Season 1
Here it is, folks: the end. In our final episode of Crash Course Astronomy, Phil gives...
Season 1
As we approach the end of Crash Course Astronomy, it’s time now to acknowledge that our...
Season 1
Thanks to the wonders of physics, astronomers can map a timeline of the universe’s...
Season 1
The majority of the universe is made up of a currently mysterious entity that pervades...
Season 1
Thanks to observations of galaxy redshifts, we can tell that the universe is EXPANDING!...
Season 1
Today on Crash Course Astronomy, Phil dives into some very dark matters. The stuff we can...
Season 1
Gamma-ray bursts are not only incredible to study, but their discovery has an epic story...
Season 1
Active galaxies pour out lots of energy, due to their central supermassive black holes...
Season 1
Galaxies contain gas, dust, and billions of stars or more. They come in four main shapes...
Season 1
Today we’re talking about our galactic neighborhood: The Milky Way. It’s a disk galaxy, a...
Season 1
Astronomers study a lot of gorgeous things, but nebulae might be the most breathtakingly...
Season 1
Last week we covered multiple star systems, but what if we added thousands or even...
Season 1
Double stars are stars that appear to be near each other in the sky, but if they’re...
Season 1
Stellar mass black holes form when a very massive star dies, and its core collapses....
Season 1
In the aftermath of a 8 – 20 solar mass star’s demise we find a weird little object known...
Season 1
Massive stars fuse heavier elements in their cores than lower mass stars. This leads to...
Season 1
Today Phil follows up last week's look at the death of low mass stars with what comes...
Season 1
Today we are talking about the life -- and death -- of stars. Low mass stars live a long...
Season 1
While Jupiter is nowhere near massive enough to initiate fusion in its core, there are...
Season 1
Phil explains that YES, there are other planets out there and astonomers have a lot of...
Season 1
Today PhilÕs explaining the stars and how they can be categorized using their spectra....
Season 1
How do astronomers make sense out of the vastness of space? How do they study things so...
Season 1
In order to understand how we study the universe, we need to talk a little bit about...
Season 1
Today Phil helps keep you from ticking off an astronomer in your life by making sure you...
Season 1
Now that weÕre done with the planets, asteroid belt, and comets, weÕre heading to the...
Season 1
Today on Crash Course Astronomy, Phil explains comets. Comets are chunks of ice and rock...
Season 1
Now that weÕve finished our tour of the planets, weÕre headed back to the asteroid belt....
Season 1
Today weÕre rounding out our planetary tour with ice giants Uranus and Neptune. Both have...
Season 1
Saturn is the crown jewel of the solar system, beautiful and fascinating. It is a gas...
Season 1
Before moving on from Jupiter to Saturn, weÕre going to linger for a moment on JupiterÕs...
Season 1
Jupiter is the biggest planet in our solar system. The gas giant is NOT a failed star,...
Season 1
The fourth planet from the sun and the outermost of the terrestrial planets, Mars has...
Season 1
Venus is a gorgeous naked-eye planet, hanging like a diamond in the twilight -- but itÕs...
Season 1
Mercury is the closest planet to the sun. It has no atmosphere and is, as such, covered...
Season 1
Join Phil for a tour of our capital-M Moon, from surface features, inside to the core,...
Season 1
Phil starts the planet-by-planet tour of the solar system right here at home, Earth.
Season 1
Phil takes us for a closer (eye safe!) look at the two-octillion ton star that rules our...
Season 1
In today's Crash Course Astronomy, Phil takes a look at the explosive history of our...
Season 1
Today Phil explores the world of tides! What is the relationship between tides and...
Season 1
Phil looks at how gravity plays out across the universe.
Season 1
Today Phil explains how telescopes work and offers up some astronomical shopping advice.
Season 1
The big question in the comments last week was, "BUT WHAT ABOUT ECLIPSES?" Today, Phil...
Season 1
In this episode of Crash Course Astronomy, Phil takes you through the cause and name of...
Season 1
This week we build on our naked eye observations from last week and take a look at the...
Season 1
Today on Crash Course Astronomy, Phil invites you to head outside and take a look at all...
Season 1
Welcome to the first episode of Crash Course Astronomy. Your host for this intergalactic...


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Join host Phil Plait in a Crash Course about the cosmos.