B. The Fate of Massive Stars: Supernovae! and Then... Fate has something very different, and very dramatic, in store for stars which are some 5 or more times as massive as our Sun. After the outer layers of the star have swollen into a red supergiant (i.e., a very big red giant), the core begins to yield to gravity and starts to shrink. As it shrinks, it grows hotter and denser, and a new series of nuclear reactions begin to occur, temporarily halting the collapse of the core.
What is Icelandic Skyr yogurt ? Skyr is an Icelandic cultured dairy product. It has the consistency of strained yogurt.
Traditionally, skyr is made with raw milk, however modern skyr is made with pasteurized skimmed milk. A small portion of skyr is added to the warm milk, to introduce the right bacteria, such as Streptococcus salivarius subsp. thermophilus and Lactobacillus delbrueckii subsp. bulgaricus.kyr is mentioned in a number of medieval Icelandic sources, including Egils saga and Grettis saga. It is unclear how similar this was to modern-day skyr, as no detailed descriptions of skyr exist from this period.