Season 6 - Episode Guide

New discoveries are challenging everything we know about black holes -- astronomers are beginning to question if they even exist. The latest science tries to explain how they work & what they look like, despite the fact we've never actually seen one.

Planets that orbit two suns instead of one might be deadly hell worlds, but new discoveries reveal that sci-fi star systems with binary stars might be optimal places for alien life.

Our solar system hides a dark and violent past, and new discoveries reveal that Earth and the planets were formed from the destruction of strange alien worlds that came before us.

Experts utilize the latest science and discoveries to investigate the cause of the Milky Way galaxy's gradual death.

Uranus and Neptune are mysterious, icy worlds at the edge of the solar system; new discoveries reveal that these strange planets may have helped start life on Earth.

Mercury is a deadly world, facing attacks from the Sun, comets, and other planets; even though it's the smallest planet in the solar system, Mercury has a dangerous secret that may one day threaten life on Earth.

Quasars are the brightest and most powerful objects in the universe, and though they have shaped the cosmos, they might ultimately destroy everything that exists.

Our solar system is home to hundreds of strange, tiny worlds called dwarf planets, and new discoveries reveal the secrets of these mysterious places.

Scientists are using cutting-edge technology to stop an asteroid apocalypse, and for the first time, mankind is closer than ever to keeping Earth safe from these killer space rocks.

Spacetime is the secret structure that controls our universe, and this strange four-dimensional substance controls time, light, and energy; it will also determine how our universe will end.

New discoveries are changing everything known about black holes, and as experts investigate these strange phenomena, they find that the truth is more mysterious than they ever imagined. This episode is a mashup of S05E02 "Black Holes: The Secret Origin", S06E01 "Are Black Holes Real?", and S04E03 "Monster Black Hole".

New technology helps experts discover the hell-like conditions on alien worlds, and their findings reveal that these deadly storms might actually help support extraterrestrial life. This episode of is a mashup of "How the Universe Works" S02E02 "Megastorms - The Winds of Creation" and S05E08 "Strangest Alien Worlds."

New discoveries help scientists investigate the secrets of asteroids. This episode of is a mashup of "How the Universe Works" S06E09 "War On Asteroids" and the series "Strip the Cosmos" S01E03 "Killer Asteroids."

New discoveries reveal the strange secrets of alien worlds in the solar system and beyond. This episode of is a mashup of "How the Universe Works" S06E08 "Strange Lives of Dwarf Planets" and S05E08 "Strangest Alien Worlds."

New discoveries reveal the terrifying ways that space can destroy all life on Earth. This episode of is a mashup of "How the Universe Works" S06E07 "The Quasar Enigma" and S05E05 "The Universe's Deadliest."

New discoveries reveal the secrets of the most mysterious and dangerous planets in the Solar System. This episode of is a mashup of "How the Universe Works" S06E06 "Secret History of Mercury" and S04E02 "Earth, Venus's Evil Twin."

New discoveries reveal the secrets of some of the strangest and most distant planets in the solar system. This episode of is a mashup of "How the Universe Works" S06E05 "Uranus & Neptune: Rise of the Ice Giants" and S05E03 "Secret History of Pluto."

New discoveries reveal the secrets of the Milky Way. This episode of is a mashup of "How the Universe Works" S06E04 "Death of the Milky Way" and S03E07 "Did a Black Hole Build the Milky Way?"

The latest discoveries reveal new information about some of our solar system's greatest mysteries. This episode of is a mashup of "How the Universe Works" S06E03 "Dark History Of The Solar System" and S04E04 "Edge of the Solar System."

New discoveries reveal the hidden secrets of the strangest and deadliest stars in the cosmos. This episode of is a mashup of "How the Universe Works" S06E02 "Twin Suns: The Alien Mysteries" and S05E04 "Stars That Kill."

New discoveries help scientists investigate the latest science of black holes. This episode of is a mashup of "How the Universe Works" S06E01 "Are Black Holes Real?" and S05E02 "Black Holes: The Secret Origin."

New discoveries reveal the secrets of the most distant and mysterious worlds in the solar system. This episode of is a mashup of "How the Universe Works" S05E03 "Secret History of Pluto" and S05E01 "Mystery of Planet 9."