But skywatchers call it Comet ZTF for short. This icy cosmic passerby is painting a green streak across the sky through the first few days of February, reaching its closest point to Earth on ...

That’s how you’ll see comet C/2022 E3 (ZTF)—the likely ... It looks like a smudge on the sky—it’s not green to the human eye, as images on social media show it. On its closest approach ...

A bright green glow will be visible to observers in the Northern Hemisphere in the morning sky as the comet moves northwest during the month of January. Those in the Southern Hemisphere will be ...