article_snippet: However, An asteroid is estimated that there are about 25,000 near-Earth objects (NEOs) larger than 460ft (140 metres), bodies that come close to Earth but don't necessarily hit the planet.
article_snippet: And there are also an estimated 1,000 NEOs larger than 3,280ft (one kilometre), highlighting the need to keep track of these space rocks.
article_snippet: Relative to Earth, asteroid
article_snippet: A;though it looks like it will come extremely close to Earth, it will actually pass very safely at a distance of 0.03 AU.
article_snippet: A single Astronomical Unit - AU - is the distance from Earth to the sun Credit:
article_snippet: experts called for a 100-fold increase in the detection and monitoring of so-called near Earth objects (NEOs).