Let's say we want to build a model of the sun and Earth alone. Earth has a radius of about 6,371 kilometers (3,959 miles), but let's represent this with a marble 1 centimeter in diameter.

It’s officially the third known interstellar object to pass through our solar system and poses no threat to Earth. Buck Moon, ‘Swift Planet’ and more: How to enjoy July’s night sky events ...

The name Cosmos (or Kosmos) was given to Soviet spacecraft that remained in Earth's orbit beginning in 1962, regardless of whether that was their intended final destination, according to NASA.

Third known interstellar object to pass through solar system, right next to Earth’s orbit by: Marcia Dunn , The Associated Press Posted: Jul 3, 2025 / 02:45 PM CDT ...

This diagram provided by NASA/JPL-Caltech shows the trajectory of interstellar comet 3I/ATLAS as it passes through the solar system. (NASA/JPL-Caltech via AP) ...

The space agency spotted the quick-moving object with the Atlas telescope in Chile earlier this week, and confirmed it was a comet from another star system.

Third known interstellar object to pass through solar system, right next to Earth’s orbit by: Marcia Dunn , The Associated Press Posted: Jul 3, 2025 / 01:42 PM CDT ...

It’s officially the third known interstellar object to pass through our solar system and poses no threat to Earth. Buck Moon, ‘Swift Planet’ and more: How to enjoy July’s night sky events ...

It’s officially the third known interstellar object to pass through our solar system and poses no threat to Earth. Buck Moon, ‘Swift Planet’ and more: How to enjoy July’s night sky events ...