Asteroid 2025 PN7 orbits Earth similarly to the moon but is a quasi-satellite. The asteroid poses no threat and will never come closer than 4 million kilometers to Earth. Other quasi-satellites ...

Gazing up at the stars one evening can be a serene picture, one of wonder and appreciation. But this evening, tonight, on a Friday evening, there will be a visitor in the sky. A huge asteroid, 2023 KU ...