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

The new observations confirmed the presence of the rare 'anti-solar tail' while analyzing the spectra of the comet to ...

Comets tend to have two tails. One is known as the dust tail, and it tends to be more curved, while the other, known as the ...

Astronomers are watching a new comet pass through our solar system with great interest. Based on its glow, the 33-billion-ton ...

Astronomers have made a groundbreaking discovery regarding the interstellar comet 3I/ATLAS, which has captivated scientists and the public alike since its detection. This unusual object has revealed ...

A rare, green-glowing comet will make its closest approach to Earth next week — and it won’t return for more than a thousand ...

Two rare bright comets are visiting our neighborhood this month, making for once-in-a-lifetime viewing. The comets, C/2025 A6 (Lemmon) and C/2025 R2 (SWAN), are already showing off their green tails ...

Gilmore released a stunning 60-minute timelapse of Comet Lemmon as a colossal section of its tail was buffeted and stripped ...

The phenomenon, known as an anti-tail, is an optical illusion caused by the Earth's position in the comet's orbital plane. reading time 2 minutes As Comet C/2023 A3 (Tsuchinshan–ATLAS) barrels its way ...

See Comet Lemmon shine in the skies over England in a new sunset portrait. Award-winning astrophotographer Josh Dury has ...

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 ...

Learn when and where to see Comet Lemmon and Comet SWAN this October as they light up the night sky in a rare double comet ...