
The Milky Way: Crash Course Astronomy #37
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 stars, with the Sun located about halfway out from the center.
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 stars, with the Sun located about halfway out from the center.
Phil gives the course a send off with a look at some of his favorite topics.
Our Universe’s days are numbered.
Thanks to the wonders of physics, we can map a timeline of the universe’s history.