[allencoin]

For those skipping straight to the comments, they basically think it's 1 or more geostationary satellites that happen to be in the path of the observed star, Ross 128.

[Darthy]

So what's the likelihood of a naturally occurring geostationary satellite vs one created by alien life?

[pavel_lishin]

I think they mean a man-made geostationary satellite.

[tomcam]

You caught me! Thank you very much.