Comet 3I/ATLAS is warming up as it approaches the sun, causing a jet to emerge. The jet is visible in a dramatic new image.

Could a ‘Trojan Horse’ from space be headed our way? Harvard scientist Avi Loeb warns 3I/ATLAS might be more than the average ...

Astronomer Gianluca Masi captured spectacular footage of a glowing meteor trail wrapping around the colossal tail of Comet ...

Contrary to allegations that 31/ATLAS is potentially hostile alien tech, the Manhattan-sized comet could provide potentially ...

The interstellar comet 3I/ATLAS is now reaching its closest point to the sun, or perihelion, on Wednesday, according to NASA.

Astronomers are closely observing the interstellar comet 3I/ATLAS. This comet is not a threat to Earth. Its study will help ...

Skywatchers can catch a rare glimpse of Comet Lemmon this month, and it won't be back until around the year 3175. Here's how ...

Harvard scientist Avi Loeb warns that 3I/ATLAS could be an extraterrestrial “Trojan horse” whose presence has major ...

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

The comet is on what’s known as a hyperbolic trajectory, which means that it doesn’t follow an orbital path around the sun.

The sky is filled with rare celestial treats this week. Want to spot some cool comets? Here's what to know about comets ...

If you own a pair binoculars or a telescope, you might be able to spot Comet Lemmon in the sky! Here's what you need to know.