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View Full Version : Star that spurred alien megastructure theories dims again



gravetti
05-23-2017, 05:05 PM
http://www.sciencemag.org/news/2017/05/star-spurred-alien-theories-dims-again

Astronomers and alien life enthusiasts alike are buzzing over the sudden dimming of an otherwise unremarkable star 1300 light-years away in the constellation Cygnus. KIC 8462852 or “Tabby’s star” has dimmed like this several times before, prompting some researchers to suggest that the megastructures of an advanced alien civilization might be blocking its light. And now—based on new data from numerous telescopes—it’s doing it again.

KIC 8462852 was first noticed to be dipping in brightness at seemingly random intervals between 2011 and 2013 by NASA’s Kepler telescope. Kepler, launched to observe the stellar dimmings caused when an exoplanet passes in front of its star, revealed that the dimming of Tabby’s star was much more erratic than a typical planetary transit. It was also more extreme, with its brightness sometimes dropping by as much as 20%. This was not the passage of a small circular planet, but of something much larger and more irregular.

Piquerobi
05-23-2017, 06:19 PM
^ Interesting!

ffoucart
07-01-2018, 09:49 AM
A cloud of dust could have been an explanation, but after further investigation, it doesn't solve the problem.