This map shows how thousands of other near-Earth asteroids – which would cause "devastation" – were discovered by NASA.
NASA has created an animation showing the extent of space rock discovered between 1999 and today.
Astronomers have found around 18,000 objects, including comets classified as near-Earth objects, located within 30 million miles of our planet's orbit around the Sun.
The Space Agency has found and traced 95% of the civilization-ending rocks
And it has an ambitious program to discover 90% of the near-earth objects within the next few years, which are at least 450 feet wide.
Despite its smaller size, the agency acknowledged that these galactic objects could still cause destruction if they hit cities [19659003PaulChodasoftheNASACenterforNear-EarthStudiessaid:"ThesesmallerasteroidscouldnotposeathreatofglobalcatastropheiftheyhitEarthbuttheycouldstillcausemassiveregionaldevastationandlossoflifeespeciallyiftheywerelostintheEarthProximitytotheMetropolitanArea"
NASA's Near-Earth Object Studies Center produces accurate orbit data based on data from observatories around the world that track and track the motion of asteroids and comets.
Look for any asteroid, including those that cross Earth's orbit.
"We calculate high-precision orbits for all asteroids and comets and map their positions in the solar system, both forward in time to detect possible effects, and backwards to see where they were in the sky," said Chodas ,
"We offer the best map of orbits for all known small bodies in the solar system."
The new 20-year animation shows how NASA's understanding of the solar system has greatly improved when it celebrated its 60th anniversary on Sunday Anniversary celebrates.
Blue in the animation depicting the near-Earth asteroids dramatically changes in thickness from 1999 to the present.
Orange represents the main belt asteroids, of which they are estimated at 780,000, between the orbit of Mars and Jupiter.