[ad_1] Cluster headaches are severe and occur in cycles that can last for weeks or years. They are believed to be caused by the dilation of blood vessels and can be triggered by certain foods or the body’s natural cycles. Treatment options include medication and surgery, but there is no cure. Cluster headaches can be […]
[ad_1] Globular clusters are dense groups of stars orbiting a galactic nucleus, with over 100 identified in the Milky Way. They are the oldest structures in the galaxy and can provide information about the age of the universe. They can span 200 light-years in diameter and contain up to a million stars. They break up […]
[ad_1] Star clusters are groups of stars bound together by gravity, with a common center. There are two main types: open clusters, which contain younger stars and are more vulnerable to separation, and global clusters, which contain older stars and are believed to have formed when galaxies first came into existence. Open clusters tend to […]
