As James Gunn's Superman (2025) races into cinemas faster than a speeding bullet, we look at the planet that could have hosted his home world and why he might be older than he looks.

How long would it take Superman to travel from Krypton to Earth?

Source: space
Source Link: https://www.space.com/entertainment/how-long-would-it-take-superman-to-travel-from-krypton-to-earth