An asteroid approximately the size of a city is set to safely pass by Earth and the moon’s orbit this weekend, offering astronomers the opportunity to study it from just over 100,000 miles away. The asteroid was discovered a month ago and is estimated to be between 130 to 300 feet in size. Although asteroid flybys are common, it is rare for one of this size to come so close. The asteroid, known as 2023 DZ2, will be visible through binoculars and small telescopes, and will pass within 320,000 miles of the moon and later, buzz the Indian Ocean. While there is no chance of the asteroid striking Earth, the close encounter offers an excellent opportunity for observations. Astronomers with the International Asteroid Warning Network see the event as useful practice for if and when a dangerous asteroid threatens our planet. A live webcast of the event will be provided by the Virtual Telescope Project.