Cluster headaches and migraine can both cause severe headaches. Cluster headaches tend to be shorter but can occur multiple times per day. A migraine episode can last days if left untreated. Cluster ...

Formally known as Messier 44, the cluster is one of the closest of its kind to Earth. It will be visible throughout January, with the best viewing times after sunset and before midnight. While visible ...

Phil Goldstein is a former web editor of the CDW family of tech magazines and a veteran technology journalist. He lives in Washington, D.C., with his wife and their animals: a dog named Brenna, and ...

Formally known as Messier 44, the cluster is one of the closest of its kind to Earth at about 600 light-years away. While visible to the naked eye as a blur, binoculars or a telescope are recommended ...

A group of about 1,000 stars known as the beehive cluster is swarming a sky near you. Stargazers who look up in January may be treated to a striking sight of numerous stars in space well beyond the ...