A rare alignment of planets and our moon will produce a celestial old-school emoticon in the pre-dawn eastern sky on April 25 ...

This rare alignment will be visible for about an hour at around 5.30am on Friday morning, with sunrise taking place at around ...

"Before Hubble, no generation ever had access to unimaginably vibrant views of space, stretching almost all the way back to ...

A smattering of ways to fill your weekend ...