Comet 3I/ATLAS is a rare visitor passing briefly through our solar system. Here’s how to find it in the night sky—and what ...

Comet 3I/ATLAS, a rare interstellar visitor, is visible this week as it departs the solar system, with some public events ...

This week marks the last chance for backyard astronomers to see interstellar Comet 3I/ATLAS before it races on its journey ...

The comet will come much closer to Jupiter in March, zipping within 33 million miles. It will be the mid-2030s before it ...

On Friday, an object that formed outside of our galaxy passes close enough to Earth that we have a chance to see it in the ...

Comet 3I/ATLAS, the third interstellar object ever detected, reached its closest point to Earth overnight from Thursday to Friday (Dec. 18 to 19), and it remains in a good viewing position tonight.

Comet 3I/ATLAS was discovered on July 1, 2025, by the NASA-funded ATLAS telescope in Rio Hurtado, Chile and was quickly ...

Comet Lemmon (C/2025 A6), discovered in Arizona earlier this year, will make a once-in-a-lifetime appearance as it passes closest to Earth on October 21, around the same time the Orionids meteor ...

Two bright green comets are streaming through the skies and are visible to skygazers in the Northern Hemisphere. Both hail from the outer edges of our solar system — possibly what's known as the Oort ...

Stargazers are in for a treat -- a newly discovered comet is visible in the July night sky. Comet Neowise, discovered in late March, is appearing brighter as it approaches the sun, according to ...

Comet C/2025 R2 (SWAN)'s backdrop is dominated by the Eagle Nebula — a vast cosmic structure of dust and hydrogen-rich gas that glows with its own light, having been ionized by the radiation emitted ...