What it is: An ancient stone circle in the Egyptian desert that may be the oldest known astronomical observatory Where it is from: An desert area of southern Egypt, about 175 miles (280 kilometers ...

An ancient and enigmatic stone circle in the Middle East may not be a prehistoric astronomical observatory after all, according to a new study of satellite images. But some of the criticisms may ...

Beijing Ancient Observatory is located in the southwest side of Jianguomen crossroad at Dongcheng District. It is a special topic site museum of nature science displaying Chinese ancient ...

Long before the Incas came to power in Peru and began to celebrate their sun god, a little-known civilization was building the oldest known astronomical observatory in the Americas. While not as ...

Scientists have discovered the oldest and most distant blazar ever seen, named J0410–0139. This powerful object is located 12 ...

The art deco building dates back to 1912 and is considered one of the world's oldest observatories. Visitors can also enjoy concerts and other musical shows in the enormous domed hall. The high ...

On a recent Friday night, a group of people lean back to look up at the domed ceiling of one of the oldest observatories in the United States. The night sky projected above them is darker than any ...