An adventure spanning billions of years into the evolution of life.
An adventure spanning billions of years into the evolution of life.
2020 • Astronomy
A long-term vision of humanity's future worlds is explored.
2020 • Astronomy
Explore the story behind the man who found the first clues to life's beginnings on Earth.
2020 • Astronomy
An abandoned orphan's dream opens the way to understanding the architecture of thought.
2020 • Astronomy
A young Carl Sagan realizes his childhood dreams, carrying his mentors' research forward.
2020 • Astronomy
A hidden underground network, a collaboration of four kingdoms of life, is revealed.
2020 • Astronomy
A scientist figures out how to go to the moon while fighting for his life in a war trench.
2020 • Astronomy
The man who stumbled on a hole in the reality of quantum mechanics and the still-unfolding technology that made it possible.
2020 • Astronomy
How a deadly embrace between science and state altered the fate of the world, and a gripping cautionary tale of mass casualty and unlikely survival.
2020 • Astronomy
From the birth of the devil in ancient Persia, where a beloved family dog becomes a seething beast, to a searing story of saintliness among macaque monkeys, join an exploration into the human potential for change. One of history's greatest monsters is transformed into one of its shining lights.
2020 • Astronomy
In what kind of world can a child born in 2020 expect to grow up? When did our slide into planetwide environmental destruction begin? Enter the possible world that awaits a 2020 baby in her twenties: one darkened by our refusal to confront the real and mounting challenges we face but one which still offers a message of hope.
2020 • Astronomy
A visit to the 2039 New York World's Fair, where intractable problems may have been solved.
2020 • Astronomy
Professor Brian Cox continues his tour of the solar system revealing that it was once home to not one, but two blue planets.
2/5 • The Planets 2019 • 2019 • Astronomy
Astronomers are laying the groundwork to locate a new planet for the human race to inhabit, and the more alien worlds they discover and encounter, the more they unmask the mysterious and truly destructive nature of the cosmos.
S8E1 • Space's Deepest Secrets • 2021 • Astronomy
Relive some of the most unexpected accidents in spaceflight and meet the astronauts who had to fix them on the fly
S1E3 • Space Disasters • 2020 • Astronomy
The Viking missions to Mars may offer proof that life once existed there.
S1E1 • Mysteries of our Universe: Our Solar System • 2019 • Astronomy
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 when a very massive star dies, and its core collapses. The core has to be more than about 2.8 times the Sun’s mass to form a black hole. Black holes come in different sizes, but for all of them, the escape velocity is greater than the speed of light, so nothing can escape, not matter or light. They don’t wander the Universe gobbling everything down around them; their gravity is only really intense very close to them. Tides near a stellar mass black hole will spaghettify you, and time slows down when you get near a black hole — not that this helps much if you’re falling in.
33 • Crash Course Astronomy • 2015 • Astronomy
Flying through bad weather can be a harrowing experience, and for NASA, it can be doubly unnerving, as violent storms can strike from below the atmosphere or above it. Witness the true power of nature in space and on Earth as astronauts and ground crews battle to overcome the elements, including a severe lightning strike that crippled Apollo 12's computer system, the freezing temps that compromised the Space Shuttle Challenger, and the tempest of space debris that sent a dead satellite on a collision course with the International Space Station.
S1E5 • Space Disasters • 2020 • Astronomy