10¹⁰ meters = 10,000,000 kilometers

Now the Earth is becoming the "pale blue dot" written of by Carl Sagan and Ann Druyan.

Many Near Earth Objects (NEOs) pass through this region of space. And several groups of astronomers have begun systematic searches to detect NEOs that may threaten Earth.

An object two kilometers (1.2 miles) or larger likely strikes Earth about once every million years on average. The asteroid that struck Mexico's Yucatan peninsula 65 million years ago may have been responsible for the extinction of the dinosaurs.