Two occurrences of the world’s greatest science festival took place last month — one in La Palma, Canary Islands, and one in ...

The space-based observatory, launched at the end of March, released its first set of images, in which a cloud of dust ...

Starting high in the Northern Hemisphere sky, I’ll be highlighting lots of stuff over the coming weeks and months. I’m going ...

This morning is the best time to catch the Eta Aquariid meteor shower, which should produce about 10 meteors per hour before ...

An aperture mask is a simple device for easier observing that increases the effective focal ratio of a telescope.

Arp 184’s single broad arm hints at a unique past, earning it a place in a famous catalog of peculiar galaxies.