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

Meanwhile, astronomers are keeping watch for a rare nova—a sudden explosion of a distant star—that could appear to the naked ...

Now, sky-gazers can essentially see the comet remnant’s final passage. The object takes its name from the Solar Wind ANisotropies, or SWAN, instrument on the Solar and Heliospheric Observatory ...

Tsuchinshan-ATLAS was that rare type of comet that arrived with fanfare and lived up to the hype, serving up naked-eye views ...