Two comets whiz past Earth this week — here’s how to see the cosmic twofer

After a year devoid of comets visible to the naked eye, two of the celestial entities — C/2025 A4 (Lemmon) and C/2025 R2 ...

This rare green comet won’t return for a thousand years. Here’s how to see it this week.

Comet C/2025 A6 (Lemmon) is this year’s brightest comet visible from Earth—an icy relic from the solar system’s origins that ...

2 Bright, Once-In-A-Lifetime Comets Flying By Earth: What To Know In VA

Two comets will be visible in Virginia skies this week. The fireball-rich Orionid meteor shower is peaking at the same time.
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Watch comets Lemmon and SWAN make their closest approach to Earth today (video)

Two comets, C/2025 A4 (Lemmon) and C/2025 R2 (SWAN), are about to reach their closest approach to Earth and you can watch the ...

Comet hurtling towards solar system isn't alien probe, scientists say

Jim Bell, astronomer and former president of The Planetary Society, explains the uniqueness of the interstellar 31/ATLAS comet.