News Space Asteroid sample nails meteorite source Dust shows where most space rocks come from By Nadia Drake August 25, 2011 at 1:57 pm - More than 2 years ago Share this:Share Share via email (Opens in new window) Email Share on Facebook (Opens in new window) Facebook Share on Reddit (Opens in new window) Reddit Share on X (Opens in new window) X Print (Opens in new window) Print Scientists have scraped the heavens and seen the solar system in a speck of dust. DUST IN THE WIND Dust recovered from the asteroid Itokawa, pictured here, holds clues to the early solar system and a record of the space rock’s life. Well, more than 1,500 specks, most less than 50 millionths of a meter in diameter.