MohamedShaban

When conducting an EVA, can any space-borne micro meteorites damage the space suit (hopefully not), or are the spacesuits "bullet-proof"? If the meteorites were able to punch holes in the spacesuit, would it be a serious problem? Thanks Dr Marshburn!

Thank you very much Dr Marshburn for the great informative answer! I very much appreciate it. Have a great day :)

Hello Dr Tom Marshburn! Thanks for hosting this AMA! I'm wondering if today's spacewalk ended 1 hr 30 min, has there been any shorter EVAs in history? If so, were they ended for similar reasons or they just happened to be short? Glad the astronauts Luca & Chris are back safe!

Since you are also a medical doctor, I thought about asking you this question: In microgravity conditions, how are gradients in blood flow and gas exchange created in the lungs? Isn't gravity instrumental in inducing them? Thanks :)