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Crash Course Astronomy
Uranus & Neptune: Crash Course Astronomy #19
Season 1
Episode 19
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 methane, and atmospheres that make them look greenish and blue. Uranus has a truly weird rotation and relatively dull weather, while Neptune has clouds and storms whipped by tremendous winds.
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11:46
Binary stars are gravitationally bound together in the same system.
12:11
Stellar mass black holes form when a very massive star dies, and its core collapses.
12:42
In the aftermath of a some stars we find a weird little object known as a neutron star.
12:02
Massive stars fuse heavier elements in their cores than lower mass stars.
11:09
What comes next after the death of a low mass star? A white dwarf.
12:02
Today we are talking about the life -- and death -- of stars.
11:05
Brown dwarfs have a mass that places them between giant planets and small stars.
11:49
There are many other planets outside of our own solar system, but finding them is tricky.
10:40
Phil explains stars and how they can be categorized using their spectra.
11:20
How do astronomers make sense out of the vastness of space?
10:33
In order to understand more of universe, we need to talk a little bit about light.
11:21
What the difference between a meteor, meteorite, and meteoroid?