What If the Moon Had Its Own Moon?

What If: Science, Theory, and Possibilities · Jun 27, 2025 · 22m

A new moon has appeared near Earth, but it's orbiting the Moon instead of our planet. Explore how this mini moon formed, its potential permanence, and its effects on Earth.

Timeline:

01:14 The Great Impact Hypothesis: Moon’s formation

02:16 Alternative moon formation

03:40 Moon’s moon as a captured asteroid

04:51 Collision with Earth or ejection

06:05 Cultural/scientific impact of a moon moon

07:14 Earth shrinks, Moon expands

08:47 Gravity changes on 'Little Earth'

10:15 Health impacts of low gravity on humans

11:39 'Big Moon’s' gravity

13:01 Atmospheric loss on Little Earth

14:45 Tidal…