Asteroid 2025 Nb21. Asteroid 2025 mk will fly past earth on june 29. Asteroids are pieces of rock left over after the solar system formed 4.6 billion years ago, an asteroid approximately the size of two football fields is set to make a.

On 20 january 2025, astronomer krisztián sárneczky detected an asteroid on an imminent collision course with earth. The current right ascension is 18h 00m 54s and.