Summary:

- Astronomers have discovered the most distant comet ever observed, located 2.5 billion miles from the Sun, far beyond the orbit of Neptune.
- This ancient comet, named 2014 UN271, is believed to have originated in the Oort Cloud, a vast region of icy objects at the edge of the solar system.
- The discovery of this distant comet provides valuable insights into the formation and evolution of our solar system, as well as the composition and behavior of these icy bodies in the outer reaches of the solar system.