It will be the second asteroid encounter for Lucy, launched in 2021 on a quest that will take it to 11 space rocks.

A newly discovered comet, called C/2025 F2 (SWAN), may have disintegrated. But the remnants are still visible.

Did you see that wild glowing blue spiral in the night sky? People across Europe—from the UK to Ukraine—were freaking out and posting it all over social media. It hovered for a few minutes, then just ...