Amino Acids produced from the ultraviolet/extreme-ultraviolet irradiation of naphthalene in a H2O+NH3 ice mixture SUMMARY: This experiment starts quite similarly to “Beaming Naphthalene 1”, but after exposure to UV light, researchers scraped off the residue (there was no scraping of the residue in “Beaming Naphthalene 1”), hydrolysis performed (reaction with water) and products identified with… Continue reading Beaming Naphthalene Part 2
Category: HE 1: Earth’s History (MS)
Construct a scientific explanation based on evidence from rock strata for how the geologic time scale is used to organize Earth’s 4.6-billion-year-old history.
Beaming Naphthalene Part 1
Infrared Study of UV/EUV Irradiation of Naphthalene in H2O+NH3 Ice SUMMARY: This study beamed naphthalene in a mixture of water and ammonia ice with different energy levels of UV light. Results showed that naphthalene breaks down and the pieces react into various small carbon-based compounds. Since conditions of this experiment try to replicate those found… Continue reading Beaming Naphthalene Part 1
Beaming Purines
The Formation of Nucleobases from the Ultraviolet Photoirradiation of Purine in Simple Astrophysical Ice Analogues SUMMARY: Purines were combined with water and ammonia and beamed with UV photons similar to the pyrimidines in “Beaming Pyrimidines Part 1”. Researchers found many purine compounds in the products including adenine and guanine (at different concentration levels). The discussion… Continue reading Beaming Purines
Beaming Pyrimidines Part 5
Mechanisms for the formation of thymine under astrophysical conditions and implications for the origin of life SUMMARY: This article talks about different ways thymine can form under the conditions given in Part 4 of the Beaming Pyrimidines series. By adding hydroxyl and methyl groups to pyrimidine and beaming the mixture, thymine can form. The role… Continue reading Beaming Pyrimidines Part 5