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  • A New View on Gravity and the Dark Side of the Cosmos

  • Aliens under the Ice – Life on Rogue Planets

  • Building a Marsbase is a Horrible Idea: Let’s do it!

  • How Do We Protect Earth From Asteroids? Part 1 - Finding Them

  • How Much Information is in the Universe? | Space Time

  • Ion Propulsion - The Plane With No Moving Parts

  • Outward Bound: Colonizing Neptune

  • Perpetual Motion From Negative Mass?

  • Supermassive Black Holes or Their Galaxies? Which Came First?

  • The Black Hole Bomb and Black Hole Civilizations

  • The Black Hole Information Paradox | Space Time

  • The Man Who Hunts Spy Satellites

  • The Physics of Life (ft. It's Okay to be Smart & PBS Eons!) | Space Time

  • The Unruh Effect | Space Time

  • Upward Bound: Power Satellites

  • What Happens If We Bring the Sun to Earth?

  • Why Black Holes Could Delete The Universe – The Information Paradox

  • Why Disappearing Hatchmarks Don't Mean Apollo Images are Fake

  • Why Does It Take So Long to Get to Mercury?