Researchers say parts of the Moon will be designated as spacecraft graveyards for defunct lunar satellites.
Lunar orbits will grow crowded as missions supporting bases, mining, and science increase.
With no atmosphere to burn up debris, satellites must eventually be crash-landed.
Uncontrolled impacts could damage scientific instruments or historic landing sites.
Experts propose designated impact zones or large craters to contain debris and dust.
Agencies including European Space Agency and UK Space Agency support the approach.
Some scientists add that controlled crashes could help study the Moon’s internal structure.
