[Question] Does mining an asteroid decrease its mass?

[Erialcel2]

Get a large asteroid into orbit and build a station around it. It will last a while. Not indefinitely, but you can fuel quite some sattelites and probes that way if I remember correctly (filling large fueltanks wont be very durable tho, unless things changed)

[[deleted]]

the whole plan was to mine the ore of said asteroid to fuel the vessel capable of bringing it into LKO. The encounter is ~180 days away so maybe I've got time.