Scientists stumble upon fastest-spinning asteroid moving at dizzying speed
Asteroid discovery: Scientists have discovered asteroid 2025 MN45, a space rock that is spinning at an extremely fast pace, making it the first such object discovered in the Asteroid Belt.
Asteroid At Record-Breaking Spin
NSF–DOE Vera C. Rubin Observatory, jointly funded by the US National Science Foundation and the US Department of Energy's Office of Science, have discovered the fastest-ever spinning asteroid with a diameter of over half a kilometre. Rubin Observatory is a joint Program of NSF NOIRLab and DOE’s SLAC National Accelerator Laboratory. This record-breaking asteroid, named 2025 MN45, challenges how celestial bodies are formed and held together. While most asteroids take several hours or days to complete one spin, this newly found rock turns every 1.88 minutes. It is the fastest-spinning asteroid ever discovered that is larger than 500 meters in diameter.
Massive Space Rock spinning wildly
What makes it even more astounding is the size of asteroid 2025 MN45. You would think something rotating so quickly would be tiny. However, this asteroid is about 2,300 feet wide, roughly the size of eight football fields or nearly twice the height of the Empire State Building. The findings were described in a study published in The Astrophysical Journal Letters.
Not a rubble pile?
Another fascinating feature is how it has managed to remain intact despite spinning at such a fast speed. Most asteroids are "rubble piles", that is, loose collections of rocks and dust held together by weak gravity. If such a space rock spun this fast, the forces would tear it apart. However, 2025 MN45 is intact, which means it is almost like a solid rock.
Asteroid located in an unexpected region
Scientists discovered 76 asteroids, of which 16 are super-fast rotators, taking 13 minutes to 2.2 hours to complete on spin, while three are ultra-fast rocks, rotating once every five minutes or less. Typically, the latter are found among "Near-Earth Objects" (NEOs). However, 2025 MN45 was spotted in the Main Asteroid Belt between Mars and Jupiter. This makes it the first such asteroid identified in that region.
Cosmic Collision Sent Asteroid Into A Tizzy
Talking about what made this asteroid rotate at such dizzying speeds, the researchers state that this is likely the result of a massive, high-angle collision that occurred in the recent past. Asteroid 2025 MN45 is believed to have crashed into another object that sent it spinning through the cosmos.
No Threat to Earth
Asteroid 2025 MN45 poses no threat to Earth as it is located in the Asteroid Belt, a zone that stretches between 179 to 628 million kilometres. Its trajectory will keep it at a comfortable distance from our planet. Scientists continue to monitor the asteroid to learn more about it and its origins.
)
)
)
)
)