Hale Observatories, the name of a group of observatories jointly administered by the California Institute of Technology and the Carnegie Institution of Washington, 196980. The group consisted of the Palomar Observatory, Mount Wilson Observatory, and Big Bear Solar Observatory, all in California; and Las Campanas Observatory in Chile. The group was named in honor of the astronomer George Ellery Hale.
Since the 19th century, humans have wondered about the prospect of life on Mars. While we haven't sent anyone to the Martian surface, we have sent spacecrafts, which have gathered a good amount of information on what it's like on Mars. How is it different from Earth? How is it similar? And could life really have existed there long ago, or exist in the future?
The moon is often the largest object in the sky outside of the sun. What is the moon made of, how did it form -- and why do people blame it for their strange behavior?