This animation represents a map of the increased count of all known asteroids in the solar system between Jan. 1, 1999, and Jan. 31, 2018. Blue represents near-Earth asteroids. Orange represents main-belt asteroids between the orbits of Mars and Jupiter. For more info about how NASA tracks and studies asteroids and comets, visit <a rel="nofollow" class="external free" href="https://www.jpl.nasa.gov/asteroidwatch/">https://www.jpl.nasa.gov/asteroidwatch/</a> and <a rel="nofollow" class="external free" href="https://cneos.jpl.nasa.gov/">https://cneos.jpl.nasa.gov/</a> .
<a rel="nofollow" class="external text" href="https://www.youtube.com/user/JPLnews">NASA Jet Propulsion Laboratory</a>
<bdo lang="en" dir="ltr"><a href="//commons.wikimedia.org/wiki/Commons:YouTube_files" title="Commons:YouTube files">YouTube</a>: <a rel="nofollow" class="external text" href="https://www.youtube.com/watch?v=vfvo-Ujb_qk"><bdi lang="">All Known Asteroids in the Solar System (1999-2018)</bdi></a> – View/save archived versions on <a rel="nofollow" class="external text" href="https://web.archive.org/web/*/https://www.youtube.com/watch?v=vfvo-Ujb_qk">archive.org</a> and <a rel="nofollow" class="external text" href="https://archive.today/https://www.youtube.com/watch?v=vfvo-Ujb_qk">archive.today</a></bdo>