China plans to launch a spacecraft with the aim of testing the feasibility of protecting Earth against any asteroids like the one that killed off the dinosaurs. The mission will involve an observer and an impactor probe targeting an asteroid with a diameter of about 30 meters before 2030.
NASA successfully demonstrated altering an asteroid's trajectory with its Double Asteroid Redirection Test (DART). The impact on the 560-foot-wide asteroid Dimorphos showed the feasibility of planetary defense technology.
NASA is developing the NEO Surveyor space telescope to detect and monitor Near-Earth Objects that may pose a threat. While no immediate asteroid threat is known, scientists continue to work on enhancing planetary defense measures.
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