However, new research has shown this potentially "water ice-rich" visitor could be even more extraordinary than initially ...

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

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 does a 15-kilometer-wide comet, moving at 152,000 miles per hour, slip into our solar system undetected until a global ...

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 ...

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

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

After defending his PhD thesis on modeling interstellar objects on Monday, June 30, Matthew Hopkins intended to take some ...

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

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 ...

Sometimes "the universe comes to us," writes the European Space Agency. For the third time since 2017, an interstellar object ...