Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. Have you seen the green comets yet? Two icy visitors from ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. Comet Lemmon — also called C/2025 A6 (Lemmon) — will on ...

A vivid comet could soon adorn the evening sky. If it survives its early April approach toward the sun, the cosmic orb could even become visible to the naked eye, and possibly as bright as Venus. Yet ...

Comet C/2025 R3 is already drawing attention—and offers a rare chance to understand what separates an ordinary comet from a truly “great” one.