Reflecting telescopes such as the one built by Newton ... Charles Chevalier created an achromatic lens that could control both chromatic and spherical aberrations. However, this meant that the ...

Solaris boasts four advanced telescopes with apochromatic lenses, meaning they are designed to bring three wavelengths of light into focus - notably, most astronomy telescopes use achromatic lenses, ...

The Euclid space telescope has, by chance, discovered its first Einstein ring, and it is absolutely stunning. Beyond its aesthetic appeal, this perfectly circular Einstein ring has allowed researchers ...

Cooke's optical manager, Mr. H. Dennis Taylor, in the direction of improving the so-called achromatic telescope. The success with which he has been rewarded, has given astronomers an objective ...