Methods for Protecting Earth against an Asteroid Strike — VOA Learning English
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Astronomers following asteroid activity in space estimate there is a very small chance an object large enough to destroy a whole city could strike Earth in 2032.
But space agency officials say even if such an asteroid keeps heading on a path toward Earth, the world is now much better-equipped to defend itself against such a threat.
The American space agency NASA recently estimated there was a 3.1 percent chance that asteroid 2024 YR4 would hit Earth on December 22, 2032. That is the highest probability predicted for such a large space rock in modern times.
Richard Moissl is head of the European Space Agency's (ESA) planetary defense office. While recognizing the risk the asteroid could…
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