The asteroid Apophis could be on a collision course with Earth and has a 1-in-233,000 chance of hitting the planet in 2036.
As a precaution, Russia is considering a space mission to deflect its orbit with the aid of other space agencies.
3 News reporter Adam Hollingworth spoke to Grant Christie from Auckland's Stardome Observatory about the possible impact.
Watch the full interview with Grant Christie from Auckland's Stardome Observatory