A mystery interstellar object discovered last week is likely to be the oldest comet ever seen—possibly predating our solar ...

The newly discovered space rock may be older than our entire solar system, and you may get the chance to see it ...

I/ATLAS isn't just fascinating because it is the third interstellar visitor found in the solar system; new research suggests ...

A rare interstellar comet is flying through our solar system. Here's how—and when—you might be able to see Comet ATLAS from ...

How do we know 3I/ATLAS, also called comet C/2025 N1 (ATLAS), is interstellar? Will it strike Earth? Can we visit it? Here ...

The comet 3I/ATLAS is the third confirmed interstellar object and is likely 3 billion years older than our own solar system.

Astronomers tracking an interstellar object flying through the solar system think it comes from a star at least 8 billion ...

I/Atlas was first spotted on July 1 by the Asteroid Terrestrial-impact Last Alert System (Atlas) survey telescope in Río ...

2025年7月1日，位于智利Río Hurtado的ATLAS（小行星地球撞击最后预警系统, Asteroid Terrestrial-impact Last Alert ...

A week and a half after its discovery, there are clues about the origin and age of the interstellar comet 3I/ATLAS – and ...

这张图展示了星际彗星3I/阿特拉斯（3I/ATLAS）穿越太阳系的轨迹。它将在10月最接近太阳。图源：NASA/JPL-Caltech新的星际彗星3I/ATLAS正以惊人的速度穿越太阳系。这位来自太阳系之外的罕见访客虽然暗淡，但正向太阳飞驰而来。天文 ...

Late in the evening on July 1, a telescope in Chile that is part of the global, NASA-funded Asteroid Terrestrial-Impact Last ...