Forbes contributors publish independent expert analyses and insights. The Universe is out there, waiting for you to discover it. You can build a refracting telescope, where the lens focuses the light, ...

THE reflecting telescope possesses one obvious advantage over the refractor, in that the position of the focus is independent of the colour of the light used. But as an offset to this all types of ...

Looking Up is transcribed using a combination of AI speech recognition and human editors. It may contain errors. Please check the corresponding audio before quoting in print. Dean Regas: Edwin Hubble ...

FitzRandolph Observatory is located on the campus of Princeton University in Princeton, New Jersey. FitzRandolph Observatory was constructed in 1934 to replace the Halsted Observatory. In 1966, a 36" ...

THOUGH the first edition of this work was published more than fifty years ago, in 1891, it still has value as a standard work on the adjustment and testing of telescope objectives. The firm of Sir ...