Just how many threatening asteroids are there? It’s complicated. – Space.com

Just how many threatening asteroids are there? It’s complicated.  Space.comCalls grow for US to bolster defense against asteroid threat  New York PostCalls Mount for US Gov’t to Bolster Planetary Defence Amid Threat of Armaggedon – Report  Sputnik InternationalArmageddon fears as expert warns ‘no plans’ to boost Earth’s defence against asteroids  Daily StarScience – Latest – Google News

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