Galaxy Weekend Poll: What do You Think? “Does a 1.5 GigaYear ET Civilization Exist?”

Potw1036a Our 4.5 billion-year old Solar System exits in a universe that is estimated to be between 13.5 and 14 billion years old. Experts believe that there could be advanced civilizations out there that have existed for 1.8 gigayears (one gigayear = one billion years). What do you think? What would it look like? Do you think we we be able to detect it if it exists?

We'll publish the best of the comments in a post on Monday.


"The Galaxy" in Your Inbox, Free, Daily