Scientists say at the present time no space object they have seen has a Torino Scale number greater than one. However they say this could easily change in the future. There is one asteroid that could threaten Earth. NASA experts say it has a Torino number of one now and should miss the Earth. They say they will know more about this asteroid in the future as they continue to study its orbit.
Scientists say the object is large enough to cause severe local damage if it does hit the Earth.
NASA experts say their major concern is the asteroids and comets they do not know about. Learning to find and study the orbit of each new asteroid and comet is a difficult task. They say they must improve their ability to find space objects to provide the Earth with a warning in time to take protective measures. Scientists have known about the threat from Near Earth Objects for many years. Teams of astronomers around the world are searching the sky for Near Earth Objects.