Does life exist anywhere else in the universe? And how did it get started? Scientists are seeking the answers in the cosmos, our solar system and right here on planet Earth.
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For most of the Earth's history, life consisted of the simplest organisms; but then something happened that would give rise to staggering diversity, and, ultimately, life as complex as that which we see today. Scientists are still struggling to figure out just what that was.
2015 • Nature
It has long been thought that our universe is all there is, but it is possible we may live in just one of many.
2015 • Astronomy
Understanding what consciousness is, and why and how it evolved, is perhaps the greatest mystery known to science.
2015 • Brain
The equations of physics suggest time should be able to go backwards as well as forwards. Experience suggests, though, that it cannot. Why? And is time travel really possible?
2015 • Physics
Does life exist anywhere else in the universe? And how did it get started? Scientists are seeking the answers in the cosmos, our solar system and right here on planet Earth.
2015 • Astronomy
The Earth, the sun, the stars, and everything we can see, only comprise five percent of the universe. But what about the other 95 percent? Scientists are puzzling over dark matter and dark energy, the mysterious components that make up the rest.
2015 • Astronomy
The gender pay gap is not caused by women earning less than men for the same job. It is largely because women choose different careers and suffer a “motherhood penalty”’.
2017 • Economics
Cities are growing faster than at any time in history, straining services and infrastructure. Technology-driven advances are at the forefront of solving this age-old problem
2017 • Technology
A futurist, a demographer and a museum curator spot trends that will affect the way people live and work.
2015 • Technology
NASA launches its most ambitious hunt for traces of life on Mars, landing a car-sized rover in a rocky, ancient river delta. The rover will stow samples for possible return to Earth and test technology that may pave the way for human travel to Mars.
The final episode shows how the unique properties of light provide an insight into the origins and development of mankind and the Universe.
4/4 • Wonders of the Universe • Astronomy
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.
1/2 • Apollo Back to the Moon • 2019 • Astronomy
Join the New Horizons team to examine the latest findings and imagery from Pluto and the fringes of our solar system. They reveal a world unlike any other we've seen yet!
2017 • Astronomy
Exploring the real-life Death Stars in the cosmos that could snuff out Earth without much effort; the science of the destructive power behind six of the deadliest star; vampire stars; supernovas; rogue stars.
S5E4 • How the Universe Works • 2017 • Astronomy
Sagan discusses the story of the Heike crab and artificial selection of crabs resembling samurai warriors, as an opening into a larger discussion of evolution through natural selection (and the pitfalls of intelligent design). Among the topics are the development of life on the Cosmic Calendar and the Cambrian explosion; the function of DNA in growth; genetic replication, repairs, and mutation; the common biochemistry of terrestrial organisms; the creation of the molecules of life in the Miller-Urey experiment; and speculation on alien life (such as life in Jupiter's clouds). In the Cosmos Update ten years later, Sagan remarks on RNA also controlling chemical reactions and reproducing itself and the different roles of comets (potentially carrying organic molecules or causing the Cretaceous–Paleogene extinction event).
2/13 • Cosmos: A Personal Voyage • 1980 • Astronomy