Astronomers in the U.S. are tracking a rare comet—C/2025 K1 (ATLAS)—which is something quite special. While comets typically appear green or sometimes blue in sunlight. because of their different ...

An interstellar comet that originated outside our solar system just made its closest pass of the sun, setting it on an outgoing path — but it’s not leaving our cosmic neighborhood yet.Related video ...

It’s not just interstellar comet 3I/ATLAS that’s been catching the attention of scientists. Comet 12P/Pons-Brooks, which was first discovered in 1812 and visits the Earth roughly every 71 years, has ...

An interstellar visitor known as 3I/ATLAS, currently hurtling toward its closest approach to the Sun, has ignited a debate among astronomers (and enthusiasts) over its true nature: is it a natural ...

A newly discovered comet could be visible to the naked eye this week, and its name should give you a clue about where it was spotted first. Comet C/2025 A6 (Lemmon) was discovered early this year by ...

COLUMBUS, Ohio — Comet Lemmon has been captured in photographs by many around the world over the past several days. Now the comet is at its closest approach to Earth, at a mere distance of 56 million ...

Wisconsin sky watchers have a final chance to see two comets, along with a meteor shower, this week. Comets Lemmon (C/2025 A6) and SWAN (C/2025 R2) are both currently visible, while the Orionid meteor ...

A newly discovered comet is about to make its closest pass to Earth on Tuesday night. It should be visible over the Central Coast before it disappears — and won’t be seen again for more than a ...

The best time to watch Comet C/2025 A6 (Lemmon) is upon us. Grab your binoculars, telescope, or just get into a very dark area and use your eyes. This is the best comet of 2025, and it is making its ...