  In the future situation, aiming to seek more resources, human beings decided
to march towards the mysterious and bright starry sky, which opened the era of
great interstellar exploration. According to the Outer Space Treaty, any
exploration of celestial bodies should be aimed at promoting global equality
and for the benefit of all nations. Firstly, we defined global equity and set a
Unified Equity Index (UEI) model to measure it. We merge the factors with
greater correlation, and finally, get 6 elements, and then use the entropy
method (TEM) to find the dispersion of these elements in different countries.
Then use principal component analysis (PCA) to reduce the dimensionality of the
dispersion, and then use the scandalized index to obtain the global equity.
Secondly, we simulated a future with asteroid mining and evaluated its impact
on Unified Equity Index (UEI). Then, we divided the mineable asteroids into
three classes with different mining difficulties and values, identified 28
mining entities including private companies, national and international
organizations. We considered changes in the asteroid classes, mining
capabilities and mining scales to determine the changes in the value of
minerals mined between 2025 and 2085. We convert mining output value into
mineral transaction value through allocation matrix. Based on grey relational
analysis (GRA). Finally, we presented three possible versions of the future of
asteroid mining by changing the conditions. We propose two sets of
corresponding policies for changes in future trends in global fairness with
asteroid mining. We test the separate and combined effects of these policies
and find that they are positive, strongly supporting the effectiveness of our
model.
