Season 3 - Episode Guide

New telescope technology has helped astronomers to explore the never-before-seen invisible universe. These modern marvels ushered in a new age of discovery, revealing secrets of greatest enigmas in the cosmos, from giant black holes to supernovas.

Meteors are a deadly threat to our planet, but new technology may provide a way for Earth to fight back when they attack. Join experts as they uncover the mysteries behind these fascinating and terrifying celestial objects.

Space entrepreneurs are on a race to transform space travel to create a home for humans beyond Earth. In this twenty-first century Space Race, modern day visionaries plan regular rocket launches, space hotels, and colonies on Mars.

Astronomers and researchers are on the hunt for the groundbreaking discovery that confirms extraterrestrial life; using state-of-the-art technology like the Kepler telescope, scientists examine thousands of exoplanets in search of another Earth.

Go inside the final moments of NASA's Cassini mission, a 20-year project to explore Saturn and its moons; Cassini revealed the secrets of strange new worlds that could harbor alien life, changing everything we know about our Solar System.

The latest discoveries reveal the mysterious and ever-changing nature of the sun; astronomers are only now beginning to understand the vast power of the giant star, and new ground-breaking investigations show it like never before.

Scientists on the hunt for extraterrestrial life suspect that it might be closer than we think: our very own solar system; using the latest discoveries, experts might, at last, confirm that our neighbors might harbor alien life.

Three scientists have won the Nobel Prize for their groundbreaking discovery of gravitational waves. These mysterious ripples in space and time were theorized by Einstein and might reveal the secrets behind the Big Bang and the birth of the universe.

New discoveries shed new light on dark matter, one of the universe's biggest mysteries. This episode is a mashup of "Space's Deepest Secrets", S02E06, "Curse of Dark Matter" and another Science Channel show "How the Universe Works", S05E07, "The Dark Matter Enigma."

New discoveries uncover the true story of the universe's creation. This episode is a mashup of "Space's Deepest Secrets", S02E10, "Secret History of the Big Bang" and S01E08, "Quest for the First Star".

New discoveries reveal the secret dangers lurking in the cosmos. This episode is a mashup of "Space's Deepest Secrets," S03E02, "When Meteors Attack" and "How the Universe Works," S05E05, "The Universe's Deadliest".

New discoveries uncover possible evidence of alien life. This episode is a mashup of "Space's Deepest Secrets", S02E9, "Stranger Signals from Alien Worlds" and "Strip the Cosmos", S01E05, "Alien Worlds".

As modern-day explorers race to send humans to Mars, the latest discoveries uncover the dangerous secrets of the Red Planet. This episode is a mashup of two other Science Channel shows: "Mars; The Secret Science", S01E01, "Race to the Red Planet" and "How the Universe Works", S05E6, "Life & Death on the Red Planet."

Go inside the untold stories of some of NASA's greatest and most legendary missions. This episode is a mashup of S03E05, "Cassini's Grand Finale" and S01E05, "Secret History of the Voyager Mission."

New discoveries reveal the secrets of our sun. This episode is a mashup of SDS S03E06, "The Sun's Greatest Mysteries" and an episode from another series, Strip the Cosmos, S01E06, "Hunting a Comet."

New discoveries uncover mysterious nature of black holes. This episode is a mashup of S02E03, "Black Holes: The Einstein Prophecy" and another Science Channel show "How the Universe Works", S05E02, "Black Holes: The Secret Origin."

New discoveries reveal the secrets of the most extreme stars in the universe. This episode is a mashup of S02E08, "Rise of the Monster Stars" and another Science Channel show "How the Universe Works", S05E04, "Stars That Kill."

New discoveries have experts on the hunt for extraterrestrial life in our solar system and elsewhere in the cosmos. This is a mashup of "Space's Deepest Secrets", S03E07, "Expedition Extraterrestrial" and S03E04, "Search for Alien Earths".