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

The interstellar object hurtling toward the inner solar system, where Earth is located, is much larger than previously ...

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

"We study cometary bodies because they act as time capsules, sealing in material from their formation billions of years ago." ...

A rare green Halloween comet will be visible in the night sky over the next few weeks before it vanishes for 1,300 years.

Two bright green comets are streaming through the skies and are visible to skygazers in the Northern Hemisphere. Both hail ...

Harvard researcher Avi Loeb says comet 3I/ATLAS weighs 33 billion tons and spans 3.1 miles, making it far larger than ...

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

This long-duration comet will make its closest approach to Earth this fall, before disappearing into the outer solar system ...

A newly tracked interstellar comet, which has been dubbed 3I/ATLAS and is likely to pass the sun, Jupiter, Mars and Venus ...

The water that makes up the oceans acted as a key ingredient for the development of life on Earth. However, scientists still do not know where the water here on Earth came from in the first place. One ...

Analyses of its emissions using NASA’s Neil Gehrels Swift Observatory indicate that the interstellar comet probably has a ...