“buyonant”
“the the”
I remember when the Scientific American was a great science magazine. Now, it could use a little proofreading by someone who speaks English.
How much sun/star light are you going to get when you’re halfway to Alpha Centauri? Better bring some Duracells.
The inverse-square law for radiation dictates that the intensity of light is inversely proportional to the square of the distance from the source of that that light.
So, if you double the distance from the sun you will have ¼ the sunlight. If you triple the distance from the sun you will have 1/9 the sunlight.
Once they pass Mars I don’t think their Solar Oxygen Generator is going to work very well.