December 4 is the fourth annual Call to Earth Day, and young people across the world are taking part in a collective effort to improve the planet they’ll one day inherit.

Why haven’t we found aliens yet? From cosmic vastness to self-destruction, here are intriguing reasons scientists think alien ...

The asteroid was approximately 70 cm in diameter and similar to previous entries like 2022 WJ, 2023 CX1, and 2024 BX1.