It involves a bright planet passing by a large and diffuse star cluster visible with the naked eye. On the evening of June 13, 2023, I went out as twilight faded to observe the conjunction of ...

A rundown of some of the exciting sky events — including meteor showers and the first total lunar eclipse for the U.S. since ...

Globular clusters like this one, Omega Centauri, are very dense groupings of up to a million stars ... [+] in a sphere, with a radius from a dozen to a hundred light years. It’s almost globular ...

The closest star system to the Sun is the Alpha Centauri system. Viewed face-on, grand spiral galaxy NGC 5643 has a festive appearance in this colorful cosmic portrait. This rare structure is known as ...

Known as Barbá 2, it is around 24,000 light-years away from Earth. The Barbá 2 cluster is home to red supergiant stars, some of which are hundreds of times wider than the sun and up to 1,000,000 ...

It’s right next to the Moon, so the challenge in capturing this famous star cluster is contending against the brightness of the Moon. In order to better capture it, I tapped the area in the sky ...