Today I want to talk about something beginning observers tend to overlook. It a process of the human eye called dark ...

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

The Swan Nebula (M17) glides through the early-morning sky near the border that Sagittarius shares with Scutum and Serpens ...

The most recent measurement of a nearby galaxy cluster is deepening a disagreement about how fast the universe is expanding — ...

The Iris Nebula (NGC 7023) is an odd reflection nebula surrounding a magnitude 7.4 star, SAO 19158, in the constellation ...

Fabricius noted the brightness of Mira on August 3, 1596. But when he observed it on the 21st of that month, it was a ...

Venus and Saturn shine before dawn, with Neptune tucked between them — see if you can spot the ice giant with binoculars or a ...

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

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

In this episode, Astronomy magazine Editor Dave Eicher invites you to head out the evening of May 5 to see Mars close to the ...

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

Tsuchinshan-ATLAS was that rare type of comet that arrived with fanfare and lived up to the hype, serving up naked-eye views ...