បណ្ណាល័យភាពយន្តនិងវីដេអូរបស់យើងអាចត្រូវបានមើលឬទាញយកដោយសមាជិកតែប៉ុណ្ណោះ
បន្តមើលដោយឥតគិតថ្លៃ➞ចំណាយពេលតិចជាង ១ នាទីដើម្បីចុះឈ្មោះបន្ទាប់មកអ្នកអាចរីករាយនឹងចំណងជើងភាពយន្តនិងទូរទស្សន៍គ្មានដែនកំណត់។
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Crash Course Astronomy
ឈុតខ្លី: Crash Course Astronomy
ពេលរត់: 12:14 នាទី
គុណភាព: HD
កាលបរិច្ឆេទខ្យល់ដំបូង: Jan 15, 2015
កាលបរិច្ឆេទអាកាសចុងក្រោយ: Dec 24, 2015
ភាគ: 46 ភាគ
រដូវ: 1 រដូវ
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Crash Course Astronomy រដូវ 1
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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...
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Naked Eye Observations
Phil invites you to head outside and take a look at all the incredible things you can see with your naked eye.
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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.
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Moon Phases
In this episode of Crash Course Astronomy, Phil takes you through the cause and name of the Moon's phases.
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Eclipses
The big question in the comments last week was, "BUT WHAT ABOUT ECLIPSES?" Today, Phil breaks 'em down for you.
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Telescopes
Today Phil explains how telescopes work and offers up some astronomical shopping advice.
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The Gravity of the Situation
In today's episode, Phil looks at how gravity plays out across the universe.
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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?...
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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 gas...
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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...
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The Earth
Phil starts the planet-by-planet tour of the solar system right here at home, Earth.
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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.
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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...
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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...
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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...
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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...
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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...
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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....
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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,...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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....
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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...
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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 in...
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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...
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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...
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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...
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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...
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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....
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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...
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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,...
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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...
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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...
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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...
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Cosmos: A Personal Voyage (1980)
Carl Sagan covers a wide range of scientific subjects, including the origin of life and a perspective of our place in the universe.
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Man and the Moon (2019)
A scientific and historical mini-series looking at the relationship between human beings and the moon.
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The Planets (2019)
Professor Brian Cox explores the dramatic lives of the eight majestic planets/worlds that make up our solar system.
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Cosmos (2014)
Famed astrophysicist Neil deGrasse Tyson provides clarity for the vision of the cosmos as he voyages across the universe with never-before-told...
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Life from Space (2021)
In this two-part series, we take a look at the monumental discoveries underway, specifically surrounding black holes and meteorites. Black holes have...
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The Universe (2007)
From the planets to the stars and out to the edge of the unknown, history and science collide in a wondrous yet deadly adventure through space and...