Butterfly Nebula
- Distance From Earth: 3,000 to 6,000 Lightyears
- Number Of Stars: 1
The Butterfly Nebula is technically within the Milky Way and not a galaxy unto itself. However, it almost seems like its own galaxy due to its appearance. Scientists claim it is the most complex planetary nebulae ever discovered. With only one central star, it has to emit extreme heat to allow for such beautiful light to be seen. It is estimated to be one of the hottest stars ever discovered, with a surface temperature of 250,000 degrees Celcius or 450,032 degrees Fahrenheit. The interesting part? The star is a White Dwarf! The Hubble Space Telescope discovered it in 2009, and scientists were blown away.
The possible alien worlds here are likely seeing a developed Earth being between 3,000 to 6,000 lightyears away. Societies had already formed, along with several languages on top of early writing. The Pyramid of Giza among other man-made structures from the old world was built in this period. While several periods such as the Bronze and Iron Age happened during this period, the planet itself did not change massively on a geological end. However, several animals popped up or went extinct in this timeframe. Mankind was also a bit smaller than it would go on to become.
Where do we find this Stuff? Here are our Sources:
National Aeronautics & Space Administration (NASA)
National Science Foundation (NSF)
Public Broadcasting Company (PBS)
University of California – Berkley
University of California – Riverside