NEA surveys were enhanced, at least one such object was observed each year from 2001, at least a dozen from 2005, and over a hundred from 2020.

As astronomers became able to discover ever smaller and fainter and ever more numerous near-Earth objects, they began to routinely observe and catalogue close approaches. as of 10 2025, the closest approach without atmospheric or ground impact ever detected was an encounter with asteroid on October 30, 2025, with a minimum distance of about 6600 km from the Earth's centre, or about 237 km above