The Sphere

NASA

Image: NASA, JPL-Caltech

Kahve Coffee in Boise, Idaho, Earth

“A Dyson Sphere? Are you out of your mind, Chris?”

Mike and Chris met every other Sunday afternoon at Boise’s only Turkish coffee and tea emporium for delicious caffeine and conversation. A wide variety of topics were bandied about between them, including the latest action and superhero movies, vintage comic books, and science fiction novels, as well as real science and technology news.

“Yeah, I know! But it fits the observations made of the dimming and flickering of Tabby’s Star.” Both friends were reasonably grounded and able to separate fact from fantasy, but of the two, Chris was far more speculative.

“Look at this.” Chris did some quick manipulating of his smart phone to pull up a webpage, and then turned the screen towards Mike. “Kepler’s been taking images of Tabby’s for four years now. Right here…” Chris quickly flipped the screen so he could see it, making sure he was pointing to the right part of the news story, and then flipped it back, “it says that not only does the star’s luminosity vary, sometimes by as much as 20 percent, but the total luminosity also has been reduced by nearly four percent.”

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