---
title: 'Let''s Steal a New Moon'
source: 'https://youtube.com/watch?v=2acc7oyXIZI'
video_id: '2acc7oyXIZI'
date: 2026-08-28
duration_sec: 70
channel: 'Kurzgesagt – In a Nutshell'
---

# Let's Steal a New Moon

> Source: [Let's Steal a New Moon](https://youtube.com/watch?v=2acc7oyXIZI)

## Summary

This video explores the hypothetical scenario of replacing Earth's Moon with other moons in our solar system, such as Amalthea, Titan, or Io, and evaluates the potential consequences for Earth, including tides, atmosphere, and the possibility of alien life.

### Key Points

- **Amalthea as a replacement** [00:02] — Amalthea, Jupiter's reddest moon, would shine as brightly as Venus from Earth but is a rubble pile with a radius 20 times smaller and four times less dense than our Moon, leading to the loss of tides.
- **Titan's potential** [00:15] — Titan is 50% larger than our Moon, has an atmosphere four times denser than Earth's, and rains liquid methane. It could host microbes that breathe hydrogen and exhale methane, making it a candidate for alien life.
- **Io's volcanic activity** [00:28] — Io has over 400 volcanoes ejecting sulfur plumes at least 300 km high, but its volcanic activity is driven by tidal interactions with Jupiter, and its harsh environment would make life unlikely.
- **The Moon's stabilizing role** [00:56] — Our Moon's current orbit keeps Earth stable on its axis, preventing chaotic ice ages, which may have been crucial for the development of life.

### Conclusion

The video concludes that our Moon is uniquely suited for life on Earth, and replacing it with other moons would have significant drawbacks, making it 'perfect just where it is.'

## Transcript

one. How about the reddest object in the solar system, Amalthea? From its host planet, Jupiter, it shines as brightly as Venus does from Earth. Sadly, it's just a pile of rubble with a radius 20 times smaller than our moon, and it's
four times less dense, so we'd have to say goodbye to our tides. Let's try Titan. It's 50% larger than our moon with an atmosphere four times denser than Earth's, which rains liquid methane. We could send probes to explore
think microbes could have evolved to breathe in hydrogen and exhale methane. Rougher tides on Earth would be a small price to pay for alien neighbors. Life is less likely if we took fiery Io. With over 400 volcanoes ejecting plumes of
over 400 volcanoes ejecting plumes of sulfur at least 300 km high, Io could would fade quickly [music] as its volcanic activity mostly comes from tidal interactions in Jupiter's system. But while it lasted, particles from Io's
eruptions could give us spectacular auroras. Still, if it wasn't for our moon in its current orbit keeping us stable on our axis and stopping [music] us drifting into chaotic ice ages, we might not even be here at all. Maybe
might not even be here at all. Maybe it's perfect just where it is.