At http://phys.org/print384501180.html .. a mysterious ring of celestial microwaves, a giant celestial structure are some ways to describe a circular formation covering one third of the sky – possibly a spherical bubble 100 degrees across. The structure shows up in different wave lengths, from radio waves to gamma rays. One explanation is that it is a supernova remnant, a giant bubble hollowed out by the explosion of stars. We are then told, 'high mass stars burn their nuclear fuel so quickly that they live only a few million years before exploding …'.
On a similar note, one of the great unknown, at https://tallbloke.wordpress.com/2016/06/13/solar-system-may-hold-ten-pla… … so it seems we now have a Planet 9, 10 and possibly 11 (if not more), all entirely theoretical and based on the odd behaviour of small cosmic bodies beyond the orbit of Pluto. Is there proof of as yet unknown planets. Well, if they exist the WISE mission has failed to pick them up. The other alternative might be there is something wrong with the consensus model – and the solar system doesn't perform in the way that mainstream believe. Something other than gravity might be tugging at those small cosmic bodies. It doesn't have to be an invisible planet – although quite what else it might be is unclear. These are exciting times as far as knowledge of space is concerned – and can only get better.