우리가 우주선을 타도 평생 다른 별에 못가는 이유

追加: 2026-06-04

[00:00:00]difficult. Because everything is so far apart.

[00:00:02]>> [music] >> But think of it this way. Let's say that this miniature soccer ball is the size of our sun and it's right on the goal of a soccer field.

[00:00:10]>> [music] >> Then this speck is Mercury.

[00:00:14]This is Venus.

[00:00:16]This tip of a ballpoint pen is our Earth, 2 and 1/2 m from the miniature soccer ball sun.

[00:00:23]Mars Jupiter Saturn, 25 m from the goal.

[00:00:31]Uranus and Neptune, 76 m away. Pluto?

[00:00:37]Pluto's back here, almost out of the building, 100 m away.

[00:00:43]How far do you think it is to the [music] next star?

[00:00:45]The nearest star would be here. 7 hours of highway driving, but 700 km away.

[00:00:51][music]