How the Universe Works

Voyager's Ultimate Mission. Experts explore the most astonishing discoveries of the Voyager spacecraft. They examine how the operation has transformed into the ultimate mission. S10, Ep4

Voyager's Ultimate Mission. Experts explore the most astonishing discoveries of the Voyager spacecraft. They examine how the operation has transformed into the ultimate mission. S10, Ep4

Moons. Are moons the most likely place to find life beyond the Earth? Explore the 300 that lie within our solar system and find out about Earth's turbulent past. S1, Ep7

Moons. Are moons the most likely place to find life beyond the Earth? Explore the 300 that lie within our solar system and find out about Earth's turbulent past. S1, Ep7

Hunt For Alien Evidence. The discovery of extra-terrestrial life faces a near impossible challenge. Experts explore the problems with proving or disproving the existence of aliens. S8, Ep9

Curse Of The Cosmic Rays. Cosmic rays that damage human DNA are a serious risk in manned space exploration. Can physicists find the source of the rays and help reduce the danger? S10, Ep2

Dark History Of Earth. Earth's past is marked by one cosmic disaster after another, forging the path of human evolution. Experts explore how close the Earth has come to destruction. S10, Ep3

Voyager's Ultimate Mission. Experts explore the most astonishing discoveries of the Voyager spacecraft. They examine how the operation has transformed into the ultimate mission. S10, Ep4

Voyager's Ultimate Mission. Experts explore the most astonishing discoveries of the Voyager spacecraft. They examine how the operation has transformed into the ultimate mission. S10, Ep4

Asteroid Apocalypse: The New Threat. If an asteroid collides with the earth it could end life on our planet as we know it. Experts reveal just how close we are to an apocalypse. S8, Ep11

Asteroid Apocalypse: The New Threat. If an asteroid collides with the earth it could end life on our planet as we know it. Experts reveal just how close we are to an apocalypse. S8, Ep11

Mission To A Comet. The Rosetta mission was a ground-breaking expedition to land on a comet for the very first time. What did this cutting-edge journey uncover about life on Earth? S9, Ep2

Mission To A Comet. The Rosetta mission was a ground-breaking expedition to land on a comet for the very first time. What did this cutting-edge journey uncover about life on Earth? S9, Ep2

Moon. New scientific discoveries reveal that the moon has an incredible, violent, and dynamic history. Was the moon originally more similar to earth than previously thought? S8, Ep10

Moon. New scientific discoveries reveal that the moon has an incredible, violent, and dynamic history. Was the moon originally more similar to earth than previously thought? S8, Ep10

Hunt For Dark Matter. The mysterious dark matter is thought to be the cosmic glue that holds the universe together, yet the search for it continues to puzzle scientists. S10, Ep6

Hunt For The Universe's Origin. Conflicting results make determining the age of the universe difficult. Finding the answer could be the key to many mysteries of the cosmos. S10, Ep7

Hunt For The Universe's Origin. Conflicting results make determining the age of the universe difficult. Finding the answer could be the key to many mysteries of the cosmos. S10, Ep7

Mystery Of Planet 9. Scientists have discovered evidence of a mysterious ninth planet on the very edge of our solar system, could its moons support extra-terrestrial life? S5, Ep1

Mystery Of Planet 9. Scientists have discovered evidence of a mysterious ninth planet on the very edge of our solar system, could its moons support extra-terrestrial life? S5, Ep1

Moon. New scientific discoveries reveal that the moon has an incredible, violent, and dynamic history. Was the moon originally more similar to earth than previously thought? S8, Ep10

Moon. New scientific discoveries reveal that the moon has an incredible, violent, and dynamic history. Was the moon originally more similar to earth than previously thought? S8, Ep10

Hunt For Dark Matter. The mysterious dark matter is thought to be the cosmic glue that holds the universe together, yet the search for it continues to puzzle scientists. S10, Ep6

Hunt For The Universe's Origin. Conflicting results make determining the age of the universe difficult. Finding the answer could be the key to many mysteries of the cosmos. S10, Ep7

Hunt For The Universe's Origin. Conflicting results make determining the age of the universe difficult. Finding the answer could be the key to many mysteries of the cosmos. S10, Ep7

Mystery Of Planet 9. Scientists have discovered evidence of a mysterious ninth planet on the very edge of our solar system, could its moons support extra-terrestrial life? S5, Ep1

The Universe's Deadliest. The Universe is a violent and dangerous place. From exploding stars and colliding galaxies to nebula shockwaves - what are the worst places in the Universe? S5, Ep2

Dark History Of Earth. Earth's past is marked by one cosmic disaster after another, forging the path of human evolution. Experts explore how close the Earth has come to destruction. S10, Ep3

Dark History Of Earth. Earth's past is marked by one cosmic disaster after another, forging the path of human evolution. Experts explore how close the Earth has come to destruction. S10, Ep3

Solar Systems. Explore the violent formation of our solar system, and look forward to its eventual death. And, what do other planetary systems around far-flung stars look like? S1, Ep5

Planets. From giant burning gas spheres to icy orphaned worlds wandering in interstellar space, explore the strange planets that inhabit the vast spread of the universe. S1, Ep6

Moons. Are moons the most likely place to find life beyond the Earth? Explore the 300 that lie within our solar system and find out about Earth's turbulent past. S1, Ep7

Moons. Are moons the most likely place to find life beyond the Earth? Explore the 300 that lie within our solar system and find out about Earth's turbulent past. S1, Ep7

War Of The Galaxies. What happens when galaxies containing billions of stars collide? The gravitational forces of these giants intersect, and they are left irrevocably changed. S9, Ep1

War Of The Galaxies. What happens when galaxies containing billions of stars collide? The gravitational forces of these giants intersect, and they are left irrevocably changed. S9, Ep1

Mission To A Comet. The Rosetta mission was a ground-breaking expedition to land on a comet for the very first time. What did this cutting-edge journey uncover about life on Earth? S9, Ep2

The Interstellar Mysteries. Interstellar space is the space between the universe's stars. New discoveries reveal that it's not empty and unremarkable as previously thought. S7, Ep5

Did The Big Bang Really Happen? New discoveries lead scientists to question if the Big Bang really happened. They investigate if it was the start of many multiverses. S7, Ep6

Did The Big Bang Really Happen? New discoveries lead scientists to question if the Big Bang really happened. They investigate if it was the start of many multiverses. S7, Ep6

Mystery Of Planet 9. Scientists have discovered evidence of a mysterious ninth planet on the very edge of our solar system, could its moons support extra-terrestrial life? S5, Ep1

The Universe's Deadliest. The Universe is a violent and dangerous place. From exploding stars and colliding galaxies to nebula shockwaves - what are the worst places in the Universe? S5, Ep2

The Universe's Deadliest. The Universe is a violent and dangerous place. From exploding stars and colliding galaxies to nebula shockwaves - what are the worst places in the Universe? S5, Ep2

Secrets Of The Sun. Some of the brightest minds and theorists on the planet explore the limits of human knowledge and explain the science behind our star. S9, Ep4

Mystery Of Alien Worlds. New discoveries have revealed alien worlds that seem to defy the laws of physics. Experts use cutting-edge astronomy to explore this mystery. S9, Ep6

Curse Of The White Dwarf. New research suggests dead stars, known as white dwarfs, could be the key to understanding the universe. Experts investigate this mysterious phenomena. S9, Ep7

Curse Of The White Dwarf. New research suggests dead stars, known as white dwarfs, could be the key to understanding the universe. Experts investigate this mysterious phenomena. S9, Ep7

War Of The Galaxies. What happens when galaxies containing billions of stars collide? The gravitational forces of these giants intersect, and they are left irrevocably changed. S9, Ep1

War Of The Galaxies. What happens when galaxies containing billions of stars collide? The gravitational forces of these giants intersect, and they are left irrevocably changed. S9, Ep1

The Universe's Deadliest. The Universe is a violent and dangerous place. From exploding stars and colliding galaxies to nebula shockwaves - what are the worst places in the Universe? S5, Ep2

The Universe's Deadliest. The Universe is a violent and dangerous place. From exploding stars and colliding galaxies to nebula shockwaves - what are the worst places in the Universe? S5, Ep2

Hunt For Alien Life. There are billions of stars in the galaxy, with billions of planets surrounding them. New discoveries force the question - is Earth the only planet with life on it? S7, Ep9

Finding The New Earth. New discoveries have revealed thousands of exoplanets beyond our solar system. Some resemble earth to the extent that one could be a new home for humanity. S7, Ep10

Finding The New Earth. New discoveries have revealed thousands of exoplanets beyond our solar system. Some resemble earth to the extent that one could be a new home for humanity. S7, Ep10

War Of The Galaxies. What happens when galaxies containing billions of stars collide? The gravitational forces of these giants intersect, and they are left irrevocably changed. S9, Ep1

War Of The Galaxies. What happens when galaxies containing billions of stars collide? The gravitational forces of these giants intersect, and they are left irrevocably changed. S9, Ep1

The Next Supernova. Our galaxy is full of stars waiting to explode into supernovas, an event that could destroy all life on Earth. Experts hunt for the next deadly supernova. S9, Ep8

Secret Lives Of Neutrinos. Neutrinos are the most mysterious particles in the universe. New discoveries reveal their significance and how they pass through objects undetected. S9, Ep9

Gravitational Waves Revealed. Gravitational waves are helping scientists explore the cosmos in new ways. How are these discoveries helping to reveal the universe's mysteries? S9, Ep10

Gravitational Waves Revealed. Gravitational waves are helping scientists explore the cosmos in new ways. How are these discoveries helping to reveal the universe's mysteries? S9, Ep10

Mission To A Comet. The Rosetta mission was a ground-breaking expedition to land on a comet for the very first time. What did this cutting-edge journey uncover about life on Earth? S9, Ep2

Mission To A Comet. The Rosetta mission was a ground-breaking expedition to land on a comet for the very first time. What did this cutting-edge journey uncover about life on Earth? S9, Ep2

The Universe's Deadliest. The Universe is a violent and dangerous place. From exploding stars and colliding galaxies to nebula shockwaves - what are the worst places in the Universe? S5, Ep2

The Universe's Deadliest. The Universe is a violent and dangerous place. From exploding stars and colliding galaxies to nebula shockwaves - what are the worst places in the Universe? S5, Ep2

Black Holes: The Secret Origin. Supermassive black holes are so large they devour stars and shape galaxies. The latest science may answer why they grow so large. S5, Ep3

Black Holes: The Secret Origin. Supermassive black holes are so large they devour stars and shape galaxies. The latest science may answer why they grow so large. S5, Ep3

Mission To A Comet. The Rosetta mission was a ground-breaking expedition to land on a comet for the very first time. What did this cutting-edge journey uncover about life on Earth? S9, Ep2

Mission To A Comet. The Rosetta mission was a ground-breaking expedition to land on a comet for the very first time. What did this cutting-edge journey uncover about life on Earth? S9, Ep2

The Universe's Deadliest. The Universe is a violent and dangerous place. From exploding stars and colliding galaxies to nebula shockwaves - what are the worst places in the Universe? S5, Ep2

The Universe's Deadliest. The Universe is a violent and dangerous place. From exploding stars and colliding galaxies to nebula shockwaves - what are the worst places in the Universe? S5, Ep2

Journey To A Black Hole. The supermassive black hole M87 is the first and only black hole ever photographed. How did it grow so large and what effect does it have on the galaxy? S9, Ep11

Journey To A Black Hole. The supermassive black hole M87 is the first and only black hole ever photographed. How did it grow so large and what effect does it have on the galaxy? S9, Ep11

Secrets Of The Cosmic Web. New research is beginning to reveal an invisible scaffold of dark matter known as the Cosmic Web, an intergalactic network that transformed the universe. S10, Ep1

Secrets Of The Cosmic Web. New research is beginning to reveal an invisible scaffold of dark matter known as the Cosmic Web, an intergalactic network that transformed the universe. S10, Ep1

Birth Of The Monster Black Holes. Experts explain the importance of supermassive black holes. They have some answers, but can they solve the mysteries surrounding these phenomena? S9, Ep3

Birth Of The Monster Black Holes. Experts explain the importance of supermassive black holes. They have some answers, but can they solve the mysteries surrounding these phenomena? S9, Ep3

Black Holes: The Secret Origin. Supermassive black holes are so large they devour stars and shape galaxies. The latest science may answer why they grow so large. S5, Ep3

Life & Death On The Red Planet. Once there was life on Mars - but scientists believe a series of devastating mass extinctions transformed a watery planet into a desert. S5, Ep4

Stars That Kill. Countdown of NASAs top six the deadliest stars - 'vampire' stars that drain their neighbours, supernovas and white dwarfs that destroy planets. S5, Ep5

Stars That Kill. Countdown of NASAs top six the deadliest stars - 'vampire' stars that drain their neighbours, supernovas and white dwarfs that destroy planets. S5, Ep5

Life & Death On The Red Planet. Once there was life on Mars - but scientists believe a series of devastating mass extinctions transformed a watery planet into a desert. S5, Ep4

Life & Death On The Red Planet. Once there was life on Mars - but scientists believe a series of devastating mass extinctions transformed a watery planet into a desert. S5, Ep4