NASA's 'Planetary Defenders' documentary follows an asteroid-threat test
NASA says the film follows a recent real-world test of how to respond to an asteroid that could pose a threat to Earth. It was streaming free on NASA+ when NASA shared it on September 28, 2026.
TLDR
NASA says its documentary 'Planetary Defenders: This Is Not an Exercise' follows a recent real-world test of asteroid-threat response. NASA's listing describes a newly discovered asteroid that posed a potential risk to Earth, putting a global planetary defense system to the test. The film was streaming free on NASA+ when NASA shared it on September 28, 2026.
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