![See the tiny blue circle superimposed on the Milky Way? That is a sphere centered on Earth that is 200 light years across. Technologically advanced civilization on Earth would be undetectable to See the tiny blue circle superimposed on the Milky Way? That is a sphere centered on Earth that is 200 light years across. Technologically advanced civilization on Earth would be undetectable to](https://external-preview.redd.it/aSiV9RLVxFN9kutgJHdEBOUNtpyGl5LX0bAWi7vddY0.jpg?auto=webp&s=bbe3ce1262029f49a74e860b4aa2efdd334d3e58)
See the tiny blue circle superimposed on the Milky Way? That is a sphere centered on Earth that is 200 light years across. Technologically advanced civilization on Earth would be undetectable to
![Alien Mega Structure Sphere Around A Distant Star In Front Of The Milky Way Stock Photo - Download Image Now - iStock Alien Mega Structure Sphere Around A Distant Star In Front Of The Milky Way Stock Photo - Download Image Now - iStock](https://media.istockphoto.com/id/849335126/photo/alien-mega-structure-sphere-around-a-distant-star-in-front-of-the-milky-way.jpg?s=612x612&w=is&k=20&c=Cj2OG_rzRq3p7MnTbgZRz5NvxhIZlVyJPjdQ7zZPTLI=)
Alien Mega Structure Sphere Around A Distant Star In Front Of The Milky Way Stock Photo - Download Image Now - iStock
![alien mega structure, Dyson sphere around a distant blue star in front of the Milky Way Stock Photo - Alamy alien mega structure, Dyson sphere around a distant blue star in front of the Milky Way Stock Photo - Alamy](https://c8.alamy.com/comp/M9HAGA/alien-mega-structure-dyson-sphere-around-a-distant-blue-star-in-front-of-the-milky-way-M9HAGA.jpg)
alien mega structure, Dyson sphere around a distant blue star in front of the Milky Way Stock Photo - Alamy
![Dyson Sphere Stock Illustrations – 69 Dyson Sphere Stock Illustrations, Vectors & Clipart - Dreamstime Dyson Sphere Stock Illustrations – 69 Dyson Sphere Stock Illustrations, Vectors & Clipart - Dreamstime](https://thumbs.dreamstime.com/z/dyson-sphere-wrap-around-our-sun-solar-system-dyson-sphere-wrap-around-our-sun-milky-way-to-get-unlimited-energy-281656160.jpg)