"What exactly happens when a person see's a shooting star? Also, why are you sometimes able to see both the sun and the moon during daylight hours?"
-
Replicating RNA
Researchers at the Scripps Research Institute have made important steps toward understanding how life originated by shedding light on the ‘RNA World’ hypothesis. The ‘RNA World’ refers to the idea that life on Earth went through a stage where RNA was used to store information and act as a catalyst, much like DNA and proteins are used in organisms today. A critical component of this stage would be that RNA molecules would have to replicate themselves. The team at Scripps has now synthesized RNA enzymes that can replicate themselves without the help of additional molecules. These RNA-based, self-replicating systems could be a model for how life on Earth first began to operate.
Source: [Astrobiology Magazine]
- Titan First
- Comment on Titan First
- Program Solicitation in Sedimentary Geology and Paleobiology
- NAI Team Seminars Recorded and Available Online
- Outer Space Oreos
- NAI Ames Research Center Team Launches New Website
- Darwin in a Test Tube
- Reflections of Chirality as a Possible Biomarker
- Student Astronomers Earn Top Honors in State Science Fair
- Reanimating Extinct Genes