In recent weeks, numerous fireballs or meteors have streaked across our skies, so it is natural to wonder if these phenomena really pose a danger to our planet and if there are programs to protect it.Most space agencies are developing planetary defense programs, among the best known is undoubtedly NASA's.It's not uncommon to hear about meteors passing very close to our planet, like the asteroid that came within just 24,710 km of Earth less than …
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