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.
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
Earth is the only home we've ever known, and it's treated us well so far. But whether it’s climate change, an apocalyptic asteroid, or some horrifying disaster we don’t even know about yet, the Earth won't live forever.
The expanding universe is a complicated place. During inflation the universe expanded faster than light, but that's something that actually happens all the time, it's happening right now. This doesn't violate Einstein's theory of relativity since nothing is moving through space faster than light, it's just that space itself is expanding such that far away objects are receding rapidly from each other. Common sense would dictate that objects moving away from us faster than light should be invisible, but they aren't. This is because light can travel from regions of space which are superluminal relative to us into regions that are subluminal. So our observable universe is bigger than our Hubble sphere - it's limited by the particle horizon, the distance light could travel to us since the beginning of time as we know it.
Veritasium • 2014 • Astronomy
For decades, scientists have dreamed of finding life on Mars. But despite their best efforts, no signs of life have been found. Could that be about to change? This is the story of the scientists and engineers behind Perseverance: the rover that could change our view of Mars forever.
Professor Lawrence Krauss and Professor Michio Kaku explain the physics behind the events in the first second of The Big Bang, events which range from the first fractions of a second after creation: The Plank Era.
2012 • Astronomy
New evidence is rewriting the history of our solar system, and using the latest discoveries and cutting-edge tech, experts are investigating if our cosmic neighborhood once featured oversized alien Earths and a second Sun.
Space's Deepest Secrets • 2019 • Astronomy
Ideas about time and space are explored in the changes that constellations undergo over time, the redshift and blue shift measured in interstellar objects, time dilation in Albert Einstein's theory of relativity, the designs of both Leonardo da Vinci and spacecraft that could travel near light speed, time travel and its hypothetical effects on human history, the origins of the Solar System, the history of life, and the immensity of space. In Cosmos Update, the idea of faster-than-light travel by wormholes (researched by Kip Thorne and shown in Sagan’s novel Contact) is discussed.
8/13 • Cosmos: A Personal Voyage • 1980 • Astronomy