yellow should be taken with some suspicion, however, because Zhou may have chosen a favorable color for political reasons.

There appear to have been two distinct phases in the early evolution of this supernova. There was first a three-month period at which it was at its brightest; after this period it diminished, then returned for a period of about eighteen months.

Petroglyphs by the Hohokam in White Tank Mountain Regional Park,

1.Previous
3.Next