How the Universe Works

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

Secret History Of Pluto. Despite Pluto's appearance as a dark and frozen world, scientists are investigating whether there might be warm liquid water beneath the surface. S5, Ep6

Secret History Of Pluto. Despite Pluto's appearance as a dark and frozen world, scientists are investigating whether there might be warm liquid water beneath the surface. S5, Ep6

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

Battle Of The Dark Universe. Dark matter and energy battle for the cosmos and the winner will determine the universe's fate. New discoveries may reveal which force will win. S7, Ep7

Battle Of The Dark Universe. Dark matter and energy battle for the cosmos and the winner will determine the universe's fate. New discoveries may reveal which force will win. S7, Ep7

Strange Lives Of Dwarf Planets. Dwarf planets are some of the solar system's most active places, from oceans of liquid water on Pluto to vanishing volcanoes on icy Ceres. S6, Ep2

Strange Lives Of Dwarf Planets. Dwarf planets are some of the solar system's most active places, from oceans of liquid water on Pluto to vanishing volcanoes on icy Ceres. S6, Ep2

Uranus & Neptune: Rise Of The Ice Giants. New research shows the migration of ice planets may have helped start life on Earth, and stopped it being destroyed. How are they so vital? S6, Ep4

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

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

Secret History Of Pluto. Despite Pluto's appearance as a dark and frozen world, scientists are investigating whether there might be warm liquid water beneath the surface. S5, Ep6

Secret History Of Pluto. Despite Pluto's appearance as a dark and frozen world, scientists are investigating whether there might be warm liquid water beneath the surface. S5, Ep6

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

Secret History Of Pluto. Despite Pluto's appearance as a dark and frozen world, scientists are investigating whether there might be warm liquid water beneath the surface. S5, Ep6

Secret History Of Pluto. Despite Pluto's appearance as a dark and frozen world, scientists are investigating whether there might be warm liquid water beneath the surface. S5, Ep6

When NASA Met Jupiter. NASA's Juno probe is unlocking Jupiter's secrets, answering mysteries and gathering data. Scientists and experts explain the importance of this mission. S8, Ep1

When NASA Met Jupiter. NASA's Juno probe is unlocking Jupiter's secrets, answering mysteries and gathering data. Scientists and experts explain the importance of this mission. S8, Ep1

Black Holes. A star collapses, creating a black hole with gravity so massive that not even light can escape. But could they provide the key to moving around the universe? S1, Ep2

Black Holes. A star collapses, creating a black hole with gravity so massive that not even light can escape. But could they provide the key to moving around the universe? S1, Ep2

When NASA Met Jupiter. NASA's Juno probe is unlocking Jupiter's secrets, answering mysteries and gathering data. Scientists and experts explain the importance of this mission. S8, Ep1

When NASA Met Jupiter. NASA's Juno probe is unlocking Jupiter's secrets, answering mysteries and gathering data. Scientists and experts explain the importance of this mission. S8, Ep1

The Dark Matter Enigma. Dark matter is one of the greatest mysteries of the universe facing scientists today. Could it be the cause of supermassive black holes and mass extinctions? S5, Ep7

Strangest Alien Worlds. Astronomers have discovered bizarre planets very different to Earth out in the galaxy, but will we ever locate a planet similar to our own? S5, Ep8

Strangest Alien Worlds. Astronomers have discovered bizarre planets very different to Earth out in the galaxy, but will we ever locate a planet similar to our own? S5, Ep8

NASA's Journey To Mars. Manned missions to Mars are the next frontier of human exploration and NASA wants to put boots on the Red Planet by 2035. But, is it mission impossible? S8, Ep2

NASA's Journey To Mars. Manned missions to Mars are the next frontier of human exploration and NASA wants to put boots on the Red Planet by 2035. But, is it mission impossible? S8, Ep2

The Big Bang. How did the universe come into existence out of nothing? Witness how it grew from a miniscule point, smaller than an atomic particle, to the vast cosmos we see today. S1, Ep3

The Big Bang. How did the universe come into existence out of nothing? Witness how it grew from a miniscule point, smaller than an atomic particle, to the vast cosmos we see today. S1, Ep3