Category:Planetary defense

Subcategories

This category has only the following subcategory.

N

• Near-Earth object tracking

Pages in category "Planetary defense"

The following 6 pages are in this category, out of 6 total. Updates to this list can occasionally be delayed for a few days.

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• Planetary defense

A

• Asteroid deflection strategies

B

• B612 Foundation

N

• Near-Earth object

S

• Sentry (monitoring system)

T

• The Spaceguard Foundation