YR4 was first reported to the Minor Planet Center by NASA's Asteroid Terrestrial-impact Last Alert System (ATLAS) in Chile on January 27, 2025.

This Summit focused on common challenges for the three tropical forest (…) The One Planet movement was created to maintain maximum political ambition for the fight against climate change and the ...

These photos were then analyzed with a device called a blink comparator, which could be used to show the movement of an object ... to the catalog of minor planets, a major planet no more.