XMM Newton lightpath
Energetic X-rays pass right through lenses and glass mirrors. To focus them, astronomers use nested, gold-coated grazing-incidence mirrors.
Credit:ESO/N. Bartmann
Energetic X-rays pass right through lenses and glass mirrors. To focus them, astronomers use nested, gold-coated grazing-incidence mirrors.
Credit:ESO/N. Bartmann