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Guided tour 2 · 6 stops · about 20 minutes

🚀 From the ISS to the edge of the universe

If you'd rather start with astronauts and spacecraft — then zoom out to the edge of the universe, in space and in time.

  1. Does space travel make you younger?Clocks on the ISS, on GPS satellites, on the Moon.Mission clocks →
  2. Can we talk to Mars live?A question and answer that take the best part of an hour.Talking to Mars →
  3. How far could you go in a lifetime?The centre of the galaxy — by your own clock.The 1 g voyage →
  4. Is everything flying away from us?Stand on any galaxy and look around.Expanding universe →
  5. How far can we ever see?46 billion light-years — and a horizon no message can cross.Cosmic horizons →
  6. How far into the future can we trace the universe's story?From the first second to the last black hole.Cosmic timeline →

Each stop asks you to predict before you explore, so the answers aren't listed here.

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