#1 | 03/20/2018Earth: 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.
#2 | 03/27/2018Alien Planets: Cosmic Nightmares
Astronaut Mike Massismino uncovers the violent secrets of the most deadly planets outside our solar system.
#3 | 04/03/2018Milky 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.
#4 | 04/10/2018Ends 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.
#5 | 04/17/2018Ice 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.
#6 | 07/24/2018Alien 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.
#7 | 07/31/2018Mercury: 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.
#8 | 08/07/2018Comets: 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.
#9 | 08/14/2018The 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.
#10 | 08/21/2018The 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.
#11 | 08/28/2018Dwarf 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.
#12 | 09/04/2018Alien 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.
#13 | 09/11/2018Alien 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.
#14 | 09/18/2018Alien 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.
#15 | 09/25/2018Alien 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.
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