P.M. EDT this afternoon. May's Full Moon is also called the Flower Moon and because our satellite is still near apogee, it ...

Rather than solid arms, spiral galaxies may show density waves—regions where matter slows down and bunches up, like cars in ...

The James Webb Space Telescope has observed glowing auroras on Jupiter like never before.

A special photographic investigation will also be undertaken of the spectra of the banded stars, and of the ends of the spectra of the bright stars. The instruments employed are an 8-inch ...