機器
orbital economics
3d render
activity
asteroid
asteroid mining
asteroid surface mining
astronaut
cost effective
deep space
drill
earth
equipment
exploration
feasibility
futuristic
industry
minerals
mining
mining operation
near earth
object
orbital
ore extraction
payload
planet
planetary
raw materials
research
resources
scarcity
skirt
space
space mining
space suit
spaceflight
study
technology
transport
venture
workers