Image: Foreground asteroid passing the Crab Nebula

Image: Foreground asteroid passing the Crab Nebula
When astronomers use the NASA/ESA Hubble Space Telescope to study the deep sky, asteroids from our solar system can leave their marks on the captured pictures of far-away galaxies or nebulae. But rather than be annoyed at the imprinted trails in Hubble images, astronomers realised they could use them to find out more about the asteroids themselves.
phys.org
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