How Planetary Defenders Planned to Stop That CityKiller Asteroid
Mar 27, 2025
The threat from near-Earth asteroid 2024 YR4 may have subsided, but discoveries of other hazardous space rocks are set to soar as new observatories come online
https://www.scientificamerican.com/article/how-planetary-defenders-planned-to-stop-that-city-killer-asteroid/
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