Sorry! This page is not yet available in your preferred language, so we're displaying the original version instead.
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.
Kredit:ESO
O snímku
Id: | faut-pas-rever021 |
Typ: | Fotografický |
Datum zveřejnění: | 26. dubna 2013 15:56 |
Velikost: | 2304 x 3072 px |