Tag: nucleobases
Sunlight on the Puzzle of Prebiotic RNA?
In two previous articles, I have argued against the plausibility of generating biologically relevant polymers (proteins, RNA, and DNA) in a prebiotic world.
Uracil Discovered on Asteroid Ryugu — What Does It Mean for the Origin of Life?
These Ryugu samples appear to be our first chance to examine which organic compounds may be produced in a prebiotic setting in our solar system.
An Extraterrestrial Spin on the RNA World
The authors argue that RNA molecules appeared in warm little ponds more than 4.17 billion years ago, transported by “meteorites and interplanetary dust particles.”
Warm Little Pond? PNAS Paper Admits Difficulties Generating RNA on Prebiotic Earth
“Warm little ponds,” in Darwin’s quaint expression, are actually very hostile environments for generating nucleotides.