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Every year, scientists track thousands of asteroids that pass near Earth. Some of these are big enough to destroy an entire city if they ever hit—earning them the nickname “city-killers.” While none of the asteroids on this list are expected to strike Earth anytime soon, their size and close paths make them important to watch…
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10 “City‑Killer” Asteroids That Scientists Are Actively Tracking
Jamie Frater
22:19
Every year, scientists track thousands of asteroids that pass near Earth. Some of these are big enough to destroy an entire city if they ever hit—earning them the nickname “city-killers.” While none of the asteroids on this list are expected to strike Earth anytime soon, their size and close paths make them important to watch…
