Crash Course Astronomy
Date de parution : 15 janvier 2015
 | Saison 1 - épisode 1 | Introduction to Astronomy Welcome to the first episode of Crash Course Astronomy. Your host for this intergalactic adventure is the Bad Astronomer himself, Phil Plait. We... |
 | Saison 1 - épisode 2 | Naked Eye Observations Today on Crash Course Astronomy, Phil invites you to head outside and take a look at all the incredible things you can see with your naked eye. |
 | Saison 1 - épisode 3 | Cycles in the Sky This week we build on our naked eye observations from last week and take a look at the cyclical phenomena that we can see at work in the universe. |
 | Saison 1 - épisode 4 | Moon Phases In this episode of Crash Course Astronomy, Phil takes you through the cause and name of the Moon's phases. |
 | Saison 1 - épisode 5 | Eclipses The big question in the comments last week was, "BUT WHAT ABOUT ECLIPSES?" Today, Phil breaks 'em down for you. |
 | Saison 1 - épisode 6 | Telescopes Today Phil explains how telescopes work and offers up some astronomical shopping advice. |
 | Saison 1 - épisode 7 | The Gravity of the Situation In today's episode, Phil looks at how gravity plays out across the universe. |
 | Saison 1 - épisode 8 | Tides Today Phil explores the world of tides! What is the relationship between tides and gravity? How do planets and their moons become tidally locked?... |
 | Saison 1 - épisode 9 | Introduction to the Solar System In today's Crash Course Astronomy, Phil takes a look at the explosive history of our cosmic backyard. We explore how we went from a giant ball of... |
 | Saison 1 - épisode 10 | The Sun Phil takes us for a closer (eye safe!) look at the two-octillion ton star that rules our solar system. We look at the sun's core, plasma, magnetic... |
 | Saison 1 - épisode 11 | The Earth Phil starts the planet-by-planet tour of the solar system right here at home, Earth. |
 | Saison 1 - épisode 12 | The Moon Join Phil for a tour of our capital-M Moon, from surface features, inside to the core, and back in time to theories about its formation. |
 | Saison 1 - épisode 13 | Mercury Mercury is the closest planet to the sun. It has no atmosphere and is, as such, covered in craters. It's also incredibly hot but, surprisingly, has... |
 | Saison 1 - épisode 14 | Venus Venus is a gorgeous naked-eye planet, hanging like a diamond in the twilight -- but it’s beauty is best looked at from afar. Even though Mercury is... |
 | Saison 1 - épisode 15 | 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... |
 | Saison 1 - épisode 16 | 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... |
 | Saison 1 - épisode 17 | Jupiter's Moons Before moving on from Jupiter to Saturn, we’re going to linger for a moment on Jupiter’s moons. There are 67 known moons, and 4 huge ones that we... |
 | Saison 1 - épisode 18 | 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.... |
 | Saison 1 - épisode 19 | Uranus & Neptune Today we’re rounding out our planetary tour with ice giants Uranus and Neptune. Both have small rocky cores, thick mantles of ammonia, water, and... |
 | Saison 1 - épisode 20 | Asteroids Now that we’ve finished our tour of the planets, we’re headed back to the asteroid belt. Asteroids are chunks of rock, metal, or both that were once... |
 | Saison 1 - épisode 21 | 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... |
 | Saison 1 - épisode 22 | The Oort Cloud Now that we’re done with the planets, asteroid belt, and comets, we’re heading to the outskirts of the solar system. Out past Neptune are vast... |
 | Saison 1 - épisode 23 | Meteors Today Phil helps keep you from ticking off an astronomer in your life by making sure you know the difference between a meteor, meteorite, and... |
 | Saison 1 - épisode 24 | 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... |
 | Saison 1 - épisode 25 | Distances How do astronomers make sense out of the vastness of space? How do they study things so far away? Today Phil talks about distances, going back to... |
 | Saison 1 - épisode 26 | 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... |
 | Saison 1 - épisode 27 | Exoplanets Today Phil explains that YES, there are other planets out there and astonomers have a lot of methods for detecting them. Nearly 2000 have been found... |
 | Saison 1 - épisode 28 | Brown Dwarfs While Jupiter is nowhere near massive enough to initiate fusion in its core, there are even more massive objects out there that fall just short of... |
 | Saison 1 - épisode 29 | Low Mass Stars Today we are talking about the life -- and death -- of stars. Low mass stars live a long time, fusing all their hydrogen into helium over a trillion... |
 | Saison 1 - épisode 30 | White Dwarfs & Planetary Nebulae Today Phil follows up last week’s look at the death of low mass stars with what comes next: a white dwarf. White dwarfs are incredibly hot and dense... |
 | Saison 1 - épisode 31 | High Mass Stars Massive stars fuse heavier elements in their cores than lower mass stars. This leads to the creation of heavier elements up to iron. Iron robs... |
 | Saison 1 - épisode 32 | Neutron Stars In the aftermath of a 8 – 20 solar mass star’s demise we find a weird little object known as a neutron star. Neutrons stars are incredibly dense,... |
 | Saison 1 - épisode 33 | Black Holes We’ve covered a lot of incredible stuff, but this week we’re talking about the weirdest objects in space: BLACK HOLES. Stellar mass black holes form... |
 | Saison 1 - épisode 34 | Binary and Multiple Stars Double stars are stars that appear to be near each other in the sky, but if they’re gravitationally bound together we call them binary stars. Many... |
 | Saison 1 - épisode 35 | Star Clusters Last week we covered multiple star systems, but what if we added thousands or even millions of stars to the mix? A star cluster. There are different... |
 | Saison 1 - épisode 36 | Nebulae Astronomers study a lot of gorgeous things, but nebulae might be the most breathtakingly beautiful of them all. Nebulae are clouds of gas and dust... |
 | Saison 1 - épisode 37 | The Milky Way Today we’re talking about our galactic neighborhood: The Milky Way. It’s a disk galaxy, a collection of dust, gas, and hundreds of billions of... |
 | Saison 1 - épisode 38 | Galaxies, Part 1 The Milky Way is our neighborhood in the universe. It’s a galaxy and there are many others out there. Galaxies contain gas, dust, and billions of... |
 | Saison 1 - épisode 39 | Galaxies, Part 2 Active galaxies pour out lots of energy, due to their central supermassive black holes gobbling down matter. Galaxies tend not to be loners, but... |
 | Saison 1 - épisode 40 | Gamma-Ray Bursts Gamma-ray bursts are not only incredible to study, but their discovery has an epic story all its own. Today Phil takes you through some Cold War... |
 | Saison 1 - épisode 41 | Dark Matter Today on Crash Course Astronomy, Phil dives into some very dark matters. The stuff we can actually observe in the universe isn’t all there is.... |
 | Saison 1 - épisode 42 | The Big Bang, Cosmology Part 1 Thanks to observations of galaxy redshifts, we can tell that the universe is EXPANDING! Knowing that the universe is expanding and how quickly its... |
 | Saison 1 - épisode 43 | Dark Energy, Cosmology Part 2 The majority of the universe is made up of a currently mysterious entity that pervades space: dark energy. We don’t know exactly what it is, but we... |
 | Saison 1 - épisode 44 | A Brief History of the Universe Thanks to the wonders of physics, astronomers can map a timeline of the universe’s history. Today, Phil’s going to give you an overview of those... |
 | Saison 1 - épisode 45 | Deep Time As we approach the end of Crash Course Astronomy, it’s time now to acknowledge that our Universe’s days are numbered. Stars will die out after a few... |
 | Saison 1 - épisode 46 | Everything, The Universe...And Life Here it is, folks: the end. In our final episode of Crash Course Astronomy, Phil gives the course a send off with a look at some of his favorite... |
