The Egg Nebula (also known as RAFGL 2688 and CRL 2688) is a bipolar protoplanetary nebula approximately 3,000 light-years away from Earth. Its peculiar properties were first described in 1975 using data from the 11 µm survey obtained with sounding rocket by Air Force Geophysical Laboratory (AFGL) in 1971 to 1974. (Previously, the object was catalogued by Fritz Zwicky as a pair of galaxies.) http://en.wikipedia.org/wiki/Egg_Nebula
a Wolf ~ Rayet nebula is a nebula which surrounds a Wolf ~ Rayet star which is [often referred to as WR stars] a heterogeneous set of stars with unusual spectra showing prominent broad emission lines of highly ionised helium & nitrogen or carbon + the spectra indicate very high surface temperatures of 30,000 K to around 200,000 K, surface enhancement of heavy elements, strong stellar winds
My life, literally and figuratively. Glad someone else calls them "nitrogenous base"s and has the directionality of the riboses and number of H-bonds right. Just realized it's originally from IDT. That explains it!
Italian Gelato Recipes---Let's start with a basic custard cream gelato and then add a whole bunch of different ingredients to give it some great flavors. You’ll need an ice cream maker for this one but its well worth the end results. Soon you’ll understand why this special dessert has been an Italian favorite for centuries.
Double-stranded DNA consists of two polynucleotide chains whose nitrogenous bases are connected by hydrogen bonds. Within this arrangement, each strand mirrors the other as a result of the anti-parallel orientation of the sugar-phosphate backbones, as well as the complementary nature of the A-T and C-G base pairing.