The new European Space Agency's Planck space telescope has observed giant structures outside the observable part of the universe.
Tiny differences in background glimming from the big bang gives scientist an idea of the state of the universe just 400.000 years after the big bang which is estimated ato have taken place 13.8 bn years ago.
The map sqeezes a surround view into an oval. There are patterns discernable and a particularly cold spot.
There is no physical explanation yet, but the non-observable part of the universe may expanding less homogeneously than what we can observe.
Editors note: As a student of physics, my personal impression is that the assumption of a perfectly regularly expanding universe was a too wild guess. Why should the yet to become universe expand regularly after the big bang? Although we could oberserve the regularity in our galactic neighbourhood we knew as well this was only a small part of the world. In human dimensions the state of an exploding area usually isn't regular due to the environment and the consistence of the exploding material. In the same manner it remains to be answered how these particular patterns of the early universe could form.