You Knew This Day Was Coming. Alien Megastructures Ruled Out for Tabby's Star. Dust is the Culprit

“Dust is most likely the reason why the star’s light appears to dim and brighten. The new data shows that different colors of light are being blocked at different intensities. Therefore, whatever is passing between us and the star is not opaque, as would be expected from a planet or alien megastructure."

"The name Elsie is a play on words with 'L + C,' short for 'light curve,' and is also a wink and a nod to the 'L'as 'C'umbres Observatory, for making the project happen. This dip [first] appeared to have a slow decline with a quick rise, which is close to a mirror image of Elsie, which had a quick decline with a slow rise. Elsie (or 'L C') in reverse is 'C L' or 'ciel,' which means 'sky' or 'heavenly' in French. 'Celeste' is the original Latin name from which 'ciel' is derived."

“If it wasn’t for people with an unbiased look on our universe, this unusual star would have been overlooked. Again, without the public support for this dedicated observing run, we would not have this large amount of data... It’s exciting. I am so appreciative of all of the people who have contributed to this in the past year – the citizen scientists and professional astronomers. It’s quite humbling to have all of these people contributing in various ways to help figure it out."