Planetary defense

thumb|OSIRIS-REx in Launch Configuration

first mission in NASA's Solar System Exploration program; impact of asteroid Dimorphos in 65803 Didymos system

Solar System object whose orbit brings it into proximity with Earth

1996 robotic space probe that landed on asteroid 433 Eros in 2001

measure of hazard posed by near-Earth objects

common theme in science fiction stories and film

asteroid or comet with an orbit such that it has the potential to make close approaches to the Earth

measure of hazard posed by near-Earth objects

methods to prevent destructive asteroid hits

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United States space mission to collect samples from an asteroid

JPL program to monitor the Minor Planet Center's catalog for potential Earth impacts

pair of space missions by NASA and ESA to demonstrate and study the effect of impacting a spacecraft into an asteroid moon

planned solar sail spacecraft

Light Italian CubeSat for Imaging of Asteroids (LICIACube, ) is a six-unit CubeSat of the Italian Space Agency (ASI). LICIACube is a part of the Double Asteroid Redirection Test (DART) mission and carries out observational analysis of the Didymos asteroid binary system after DART's impact on Dimorphos. It communicates directly with Earth, sending back images of the ejecta and plume of DART's impact as well as having done asteroidal study during its flyby of the Didymos system from a distance of , 165 seconds after DART's impact. LICIACube is the first purely Italian autonomous spacecraft in de

hypothetical scientific object

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killer asteroid detector canceled as of 2017