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 ...

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 ...

A new star called T Coronae Borealis may soon appear in the night sky after a thermonuclear flash — and disappear just a few ...

Astronomers used the Hubble Space Telescope to image "peculiar" galaxy Arp 184 (NGC 1961) about 190 million light-years away.