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What If Earth Was No Longer Our Home?

What If | September 29, 2026



Which worlds could humanity actually call home beyond Earth? From ancient Mars and a future Moon city to moving billions of people off our planet and reaching an Earth-like world, these scenarios explore the places humanity might one day be able to live.

00:05 What If You Lived on Mars 1 Billion Years Ago?
18:23 What If We Moved All 8 Billion People To Mars?
44:28 What If NASA Built a Moon City by 2032?
1:06:16 What If You Traveled to Earth 2.0?

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#whatif #science #earth #universe #cosmos #moon

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Comments

This post currently has 26 comments.

  1. @thatmaninblack

    September 29, 2026 at 12:25 pm

    If we want life on March, we could send there Tardigrades/water bears, with things they need to survive and put them underground. They can survive space, I guess Mars would be and easy task for them.

    "The European Space Agency launched thousands of dehydrated tardigrades into low Earth orbit aboard a crewless spacecraft for 10 days. While out there, they were exposed to a complete vacuum, freezing temperatures, and intense cosmic radiation. When scientists brought them back to Earth and rehydrated them, most of them woke right back up and went on to have normal, healthy offspring."

  2. @roseedge5626

    September 29, 2026 at 12:25 pm

    You can all move to Mars and leave me here. On Mars, I could never go outside and ride my bike, watch the wildlife, hear the birds, go to the beach. I'd always need to wear a spacesuit. No thanks. Have fun on Mars without me.

  3. @adamkawka7838

    September 29, 2026 at 12:25 pm

    who ever thought out solar on mars is a gen z retard we have the cleanest energy ever made already ..Nuclear trying to work backwards is just stupid its like having a f1 and going back to horseback

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