Comet Lemmon (C/2025 A4) will make its closest approach to Earth on November 8th, and is currently visible to the naked eye in dark locations away from light pollution.

A pair of newly discovered comets are making a rare double display in the night sky this week. SWAN and Lemmon, both of which were discovered this year, have reached their closest points to Earth in their thousands-of-years-long orbits around the sun: SWAN on Monday, Oct. 20, and Lemmon Tuesday, Oct. 21, according to Live Science.

A photographer snapped a striking shot of Comet Lemmon streaking over Scotland as the night sky unexpectedly filled up with a technicolor mix of vibrant auroras.

Beginning Monday afternoon, comet Lemmon will pass about 56 million miles from Earth, while comet Swan will soar even closer, at roughly 24 million miles. Both comets are expected to peak in brightness between Monday and Tuesday.

Get ready for a triple sky-spectacle of meteors, comets and auroras on Oct. 20 and Oct. 21, 2025. Here's how, when and where to see it all.

A mysterious video has ignited social media, with clips claiming to show 'recent leaked footage' of the interstellar object 3I/ATLAS. The object, seen in a grainy telescope view, appears elongated and structured,

A new image shows the growing tail of a comet from another star system streaking across our solar system. The image of comet 3I/ATLAS was captured on Aug. 27 using one of the telescopes at the International Gemini Observatory in Chile during a public ...

The newest comet to create a buzz among sky watchers was spotted recently, and it will be coming closer to Earth in October - possibly giving us a better look at this once-in-a-lifetime visitor from the outer reaches of our solar system. The comet’s ...

Alfredo has a PhD in Astrophysics and a Master's in Quantum Fields and Fundamental Forces from Imperial College London.View full profile Alfredo has a PhD in Astrophysics and a Master's in Quantum Fields and Fundamental Forces from Imperial College London.