Slideshow · Science
A city-killer asteroid returns in 2028. Ready for Earth's close call?
Spotted in late December 2024, asteroid 2024 YR4 will make a crucial 2028 flyby that determines whether it strikes the Moon in December 2032.
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⏱8 Min Read◫21 Slides
A city-killer asteroid returns in 2028. Ready for Earth's close call? 
20. The City-Killer Classification 
19. Late December 2024 Discovery 
18. Estimated Diameter Of 40 To 90 Meters - AdvertisementSwipe or tap ▶ to continue countdown
17. Scale Of Big Ben Or A Boeing 747 
16. The December 17, 2028 Return Date 
15. Safe Passing Distance Of 8 Million Kilometers 
14. Zero Risk Of Earth Impact In 2028 - AdvertisementSwipe or tap ▶ to continue countdown
13. Currently Lost In Deep Space Darkness 
12. A Critical Observation Window 
11. A Rare Lunar Impact Probability 
10. The December 22, 2032 Timeline - AdvertisementSwipe or tap ▶ to continue countdown
9. A One-In-Twenty-Five Lunar Strike Chance 
8. Earth's Gravity As The Trajectory Key 
7. Post-2028 Trajectory Recalculation 
6. A Massive New Lunar Crater - AdvertisementSwipe or tap ▶ to continue countdown
5. NASA Sentry And ESA Risk Monitoring 
4. Near-Earth Object Neighborhood Status 
3. Proven Deflection Via NASA's DART Mission 
2. Goldstone Planetary Radar Mapping - AdvertisementSwipe or tap ▶ to continue countdown
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▼ Visual Countdown
Spotted in late December 2024, asteroid 2024 YR4 will make a crucial 2028 flyby that determines whether it strikes the Moon in December 2032.
Swipe or tap ▶ to begin the countdown
©Wikimedia / Asteroid & Unsplash / Javier Miranda
