A chronicle of the Apollo space program; the first phase takes place against a backdrop of the Cold War, from the disaster of Apollo 1 to the triumph of the Apollo 8 mission.
A chronicle of the Apollo space program; the first phase takes place against a backdrop of the Cold War, from the disaster of Apollo 1 to the triumph of the Apollo 8 mission.
2019 • Astronomy
The Apollo space program embraces tragic setbacks and historic success; the last stage includes the Apollo 11 space flight which landed the first two people on the Moon.
2019 • Astronomy
Shocking new evidence has convinced some of the world's greatest physicists that the universe is a hologram. Using cutting-edge technology, they investigate the secrets of black holes and space-time to build the case for this game-changing discovery.
Space's Deepest Secrets • 2019 • Astronomy
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 meteoroid. When the Earth plows through the stream emitted by a comet we get a meteor shower. Meteors burn up about 100 km above the Earth, but some survive to hit the ground. Most of these meteorites are rocky, some are metallic, and a few are a mix of the two. Very big meteorites can be a very big problem, but there are plans in the works to prevent us from going the way of the dinosaurs.
23 • Crash Course Astronomy • 2015 • Astronomy
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 space. They can glow on their own or reflect light from nearby stars. When they glow it’s usually predominantly red from hydrogen and green from oxygen, and when they reflect and scatter light it’s from massive hot stars, so they look blue. Stars are born in some nebulae, and create new ones as they die. Some nebulae are small and dense, others can be dozens or hundreds of light years across.
36 • Crash Course Astronomy • 2015 • Astronomy
For as long as we’ve had eyes to see and minds to wonder we’ve marveled at the stars. Since the discovery of the first so-called exoplanet in 1994, the Planet Hunters have transformed the way we see the universe. It is the year 2157, and spacecraft Artemis enters the final phase of construction.
1/4 • Living Universe • 2018 • Astronomy
Explores how light, time and gravity affects our perception of the universe.
S1E4 • Cosmos: A Spacetime Odyssey • 2014 • Astronomy
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 want to explore in greater detail. Ganymede is the largest - larger, in fact, than any other moon in the solar system and the planet Mercury! Callisto, orbiting the farthest out, is smaller but quite similar to Ganymede in many ways. Io, meanwhile, is most noteworthy for its tremendous volcanic activity. There’s also water on Ganymede and Europa!
17 • Crash Course Astronomy • Astronomy
