You have already liked this page, you can only like it once!
COOKIES
For the best possible video quality and to enable the sharing functionality, please accept all cookies. To adjust your cookie settings, click here.
Where do asteroids come from? Patrick Michel, Director of Research at CNRS at the Côte d'Azur Observatory explains how mysterious and sometimes risky space rocks came to populate our Solar System.
Closed captions available
Captions and subtitles are available (automatically generated by YouTube) -
select your language using the YouTube player controls.
A non-YouTube version is available using the 'download' button above.