S2 E1 • Earth: The Secret History

Astronaut Mike Massimino uses the latest science to reveal the strange secrets of planet earth, and explores whether alien earths exist elsewhere in the universe.

Première diffusion : 20 mars 2018

S2 E2 • Alien Planets: Cosmic Nightmares

Astronaut Mike Massismino uncovers the violent secrets of the most deadly planets outside our solar system.

Première diffusion : 27 mars 2018

S2 E3 • Milky Way: The Monster Inside

Astronaut Mike Massimino explores the dark secret of the Milky Way, the home to both Earth and a terrifying supermassive black hole.

Première diffusion : 3 avril 2018

S2 E4 • Ends of the Solar System: Strange Frontiers

Astronaut Mike Massimino uses the latest NASA discoveries to explore the dark and mysterious frontiers of our solar system.

Première diffusion : 10 avril 2018

S2 E5 • Ice Giants: The Frozen Aliens

Astronaut Mike Massimino journeys to Uranus and Neptune, the farthest planets from the sun and the home to some of the solar system's strangest mysteries.

Première diffusion : 17 avril 2018

S2 E6 • The Sun: Secrets of Our Star

Première diffusion : 1 mai 2018

S2 E6 • Alien Galaxies: The Strange Secrets

Astronaut Mike Massimino explores the universe's strangest alien galaxies, strange places that could be home to extraterrestrial life and deadly supermassive black holes.

Première diffusion : 24 juillet 2018

S2 E7 • Mercury: The Cursed Planet

Astronaut Mike Massimino explores Mercury, a deadly and tiny planet that faces constant attacks from the Sun, and which might one day pose a threat to all life on Earth.

Première diffusion : 31 juillet 2018

S2 E7 • Episode 7

S2 E8 • Comets: Mysteries from the Deep

Astronaut Mike Massimino reveals the alien secrets of comets, strange visitors from deep space that might be responsible for life on Earth.

Première diffusion : 7 août 2018

S2 E9 • The Sun: Secrets of Our Star

Astronaut Mike Massimino journeys to the sun, revealing the secrets of Earth's star and how it will one day destroy the planet.

Première diffusion : 14 août 2018

S2 E10 • The Solar System: Alien Origins

Astronaut Mike Massimino uncovers the strange and violent birth of the solar system, and reveals how its planets were built from the wreckage of bygone alien worlds.

Première diffusion : 21 août 2018

S2 E11 • Dwarf Planets: Aliens Among Us

Astronaut Mike Massimino explores dwarf planets, mysterious worlds like Pluto that are too small to be a planet, but are home to some of the universe's biggest secrets.

Première diffusion : 28 août 2018

S2 E12 • Alien Stars: Mystery of the Monsters

Astronaut Mike Massimino journeys to the deadliest stars in the universe, where terrifying suns can rip apart planets but may be integral to life on Earth.

Première diffusion : 4 septembre 2018

S2 E13 • Alien Volcanoes: Life in Hell

Astronaut Mike Massimino uses the latest science to explore the alien volcanoes of distant worlds and reveals if they are hotbeds for extraterrestrial life.

Première diffusion : 11 septembre 2018

S2 E14 • Alien Moons: The Next Earth

Astronaut Mike Massimino journeys to the alien moons of the solar system and discovers if these strange worlds could be habitable for life beyond Earth.

Première diffusion : 18 septembre 2018

S2 E15 • Alien Oceans: Search for Life

Astronaut Mike Massimino explores the mysterious oceans of the solar system, where the latest discoveries provide new clues in the search for alien life.

Première diffusion : 25 septembre 2018