1. In 1945, the first atomic bomb was detonated at Trinity Site in southern New Mexico. This event marked the beginning of the atomic age and the end of World War II.

2. On July 20, 1878, famed outlaw Billy the Kid was captured for the first time by Sheriff Pat Garrett. Billy the Kid went on to escape from jail and continue his outlaw activities until he was eventually killed by Garrett in 1881.

3. The New Mexico Museum of Natural History and Science opened its doors to the public on July 20, 1986. The museum features exhibits on New Mexico's geology, paleontology, and natural history.

4. On this day in 1881, the town of Las Vegas, New Mexico was incorporated. Today, Las Vegas is a popular tourist destination known for its Victorian architecture and rich history.

5. In 2002, the first Virgin Galactic spacecraft was unveiled in New Mexico. Spaceport America, located in the desert near the town of Truth or Consequences, is the first commercial spaceport in the world and serves as the main hub for Virgin Galactic's space tourism program.