In hindsight I need to find a way to better distinguish these two brothers when in their space suits so not only the reader can tell them apart, but myself as well. Thank's to my unofficial copy-editor for always pointing this kind of crap out.
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Edit: So my unofficial copy-editor pointed out a typo in the first panel after it posted. That's why I like having her help! The changes have been made and all typos (to my knowledge) are fixed!
Don't feel bad. NASA had the same problem telling astronauts apart on the moonwalks. They eventually made the space suits so the mission commander had a red stripe on his sleeve and around the knee of his suit. Maybe you can give one of the brothers a stripe. I'm enjoying this chapter BTW.
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Edit: So my unofficial copy-editor pointed out a typo in the first panel after it posted. That's why I like having her help! The changes have been made and all typos (to my knowledge) are fixed!