Interstellar comet 3I/ATLAS has gone from a faint outsider to one of the most closely watched visitors in the Solar System, ...

OWING to a number of unforeseen circumstances, mostly beyond our control, an incorrect version of part of our communication under the above title was printed in Nature of December 22, 1951. Our main ...

SCREENING and spin doublets in X-ray spectra are matters of great significance. The formation of these doublets in X-ray diagram lines is now well known and has received satisfactory theoretical ...