Tuesday 6 May 2008

Flat universe and Cosmic microwave

He has still got it. Thats right; even in his mid-80s, Sir Patrick Moore is still clearly enthused by his favourite subject. In the 666th episode of the Sky at Night, he plays the 'devil' in an interesting debate entitled "we just don't know".

This is one of the best episodes ... ever! It seems that dark matter is not dark afterall, but is instead "transparent" matter. Otherwise, we would not be able to see through it as we can not through the dense microwave radiation that prevents observation of events closer to the big-bang, if there was ever one.

Earth was thought to be flat first and then found to be round (well, nearly). And now, the geometry of our universe seems to be flatter than it was thought originally.

1 comment:

Tulpa said...

Flat huh? Like the lawn! I couldn't agree more with you about the great Patrick Moore. He just keeps going.... *gulp* next.