Washing mirrors
Dust accumulates over time on mirrors´ surfaces, absorbing and diffusing some of the light that should be focused on the instruments, so periodical cleaning is needed.
Credit:ESO
About the Image
| Id: | faut-pas-rever021 |
| Type: | Photographic |
| Release date: | 26 April 2013, 15:56 |
| Size: | 2304 x 3072 px |
