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How did life on Earth begin?

Discovery boosts theory that life on Earth arose from RNA-DNA mix
Newly described chemical reaction could have assembled DNA building blocks before life forms and their enzymes existed
Date:
December 28, 2020
Source:
Scripps Research Institute
Summary:
Chemists have made a discovery that supports a surprising new view of how life originated on our planet. They demonstrated that a simple compound called diamidophosphate (DAP), which was plausibly present on Earth before life arose, could have chemically knitted together tiny DNA building blocks called deoxynucleosides into strands of primordial DNA.

See link.
https://www.sciencedaily.com/releases/2020/12/201228095428.htm

10 day(s) ago

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Answers (1)

Kravenhead
The answer to that is elusive and evolving all the time.
This sounds like a pretty good theory, though.
It's also possible that the process began somewhere else and was brought here by asteroids and comets.
If that's true, life on Earth could be the result of impacts on other planets, like Mars, which sent life riddled debris to Earth.
We've read how Mars was very likely hospitable to life in the distant past, so that's entirely possible.
That would make us Martians.
In fact, both things could have happened, which would make us a mix. A bunch of mutts, so to speak.
It'd be nice if we could get some help on this from some ancient alien civilization that documented it all.

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