“We usually think of water as so benign, but when it’s divided in the form of little droplets, water is highly reactive,” said Stanford chemist Richard Zare, whose most recent research is illuminating one of science’s most profound mysteries the source of life on Earth. Zare and his authors propose that brief bursts of electricity, between positively and negatively charged-up water droplets, perhaps a billion years ago could have had the ability to create organic molecules. “Microlightning” is the twenty first century reprise of the Miller-Urey concept, years ago criticized for proposing lightning bolts as a main avenue to the emergence of life.
The Earth was a hot, barren world four billion years ago consisting of thunder waves, thundering waterfalls, and stormy atmospheric gases such as methane, ammonia, and nitrogen. Such an environment would be unfriendly to life, but these were the sparks needed for triggering complex chemical reactions. In a first ever test, Zare’s scientists mimicked those ancient conditions by shooting water into an atmosphere chamber that has been deemed virtually identical to the atmosphere of early Earth. What did they learn? Microlightning was what ignited the building blocks of such big organic molecules as glycine, a protein building block of amino acids, and uracil, an RNA nucleotide base.
This microlightning is due to the electrical charges that are built up in single water drops by sprays or splashes. In this case, the big drops are positively charged and small drops are negatively charged. When the negative drops collide with one another, electrons are passed from one to another, releasing zaps of energy. Unlike blinding lightning bolts that curve miles, microlightning spans a billionth of a meter. But it’s powerful enough to drive chemical reactions that synthesize the bricks of life. Thanks to high speed cameras, Zare’s scientists were able to record these brief sparks, offering photographic proof of their technical skill.
The implications for research are stunning. The Miller Urey hypothesis has been celebrated and criticized for a half century. When Stanley Miller and Harold Urey demonstrated in their 1952 pioneering experiment that amino acids were created through the discharge of lightning in an early atmosphere, the article was received warmly. Others had long argued that lightning discharge didn’t occur frequently enough and the ocean was too vast to produce significant organic molecules thereby. Microlightning is a superior option. “On early Earth, there were water sprays all over the place into crevices or against rocks, and they can accumulate and create this chemical reaction,” Zare said in a press release.
This study also presumes that the ancient Earth atmosphere had an abundance of chemicals with raw materials but no carbon-nitrogen molecules of proteins, enzymes, and nucleic acids. By demonstrating the synthesis of the molecules by microlightning, Zare’s team has revealed a novel prebiotic chemistry route. According to Space.com, the process has the potential to explain most of the Miller-Urey hypothesis constraints while giving a statistically plausible route to the origin of life.
The broader scientific community also has been educated. Dr Eva Stueeken, who is a life origins scientist at the University of St Andrews, said the finding was “fascinating” and stressed that in the future experiments would have to be carried out using mixed composition liquids and gases. Meanwhile, University of California, Santa Cruz biochemist David Deamer confirmed microlightning “can now be added to the list of possible energy sources available to drive organic synthesis before life began.” Those are not exactly words of revolutionary hope of this study to redefine our idea of prebiotic chemistry.
Aside from the importance of its implications to our past on Earth, this research also awakens the imagination as to the possibility of life on other parts of the universe. If microlightning can form organic molecules in certain circumstances, then is it the same with other moons and planets that possess liquid and atmospheric circumstances as well? Astrobiologists have thought of water as one of those things that make a location habitable, but that its worth, based on this study, is greater than previously thought.
Perhaps such life arose from tiny sparks in water sprayings of mist, radical but unassuming. It leads one to think about the order by which one might make change, that even the lightest touch like a feather might precipitate abhorrent results. “A small spark can start a great fire.” Zare surmises. Perhaps microlightning even initiated the chemistry to construct life in all its present form. And for researchers and scientists, too, this research is an invitation to recall the awe of nature and marvel and how its system patiently holds out to be unlocked in the most unlikely of locations. Through further tests and seeking, the science of micro lightning might hold within its figures not only the past, but even perhaps the potentiality of life throughout the entire universe.
The Earth was a hot, barren world four billion years ago consisting of thunder waves, thundering waterfalls, and stormy atmospheric gases such as methane, ammonia, and nitrogen. Such an environment would be unfriendly to life, but these were the sparks needed for triggering complex chemical reactions. In a first ever test, Zare’s scientists mimicked those ancient conditions by shooting water into an atmosphere chamber that has been deemed virtually identical to the atmosphere of early Earth. What did they learn? Microlightning was what ignited the building blocks of such big organic molecules as glycine, a protein building block of amino acids, and uracil, an RNA nucleotide base.
This microlightning is due to the electrical charges that are built up in single water drops by sprays or splashes. In this case, the big drops are positively charged and small drops are negatively charged. When the negative drops collide with one another, electrons are passed from one to another, releasing zaps of energy. Unlike blinding lightning bolts that curve miles, microlightning spans a billionth of a meter. But it’s powerful enough to drive chemical reactions that synthesize the bricks of life. Thanks to high speed cameras, Zare’s scientists were able to record these brief sparks, offering photographic proof of their technical skill.
The implications for research are stunning. The Miller Urey hypothesis has been celebrated and criticized for a half century. When Stanley Miller and Harold Urey demonstrated in their 1952 pioneering experiment that amino acids were created through the discharge of lightning in an early atmosphere, the article was received warmly. Others had long argued that lightning discharge didn’t occur frequently enough and the ocean was too vast to produce significant organic molecules thereby. Microlightning is a superior option. “On early Earth, there were water sprays all over the place into crevices or against rocks, and they can accumulate and create this chemical reaction,” Zare said in a press release.
This study also presumes that the ancient Earth atmosphere had an abundance of chemicals with raw materials but no carbon-nitrogen molecules of proteins, enzymes, and nucleic acids. By demonstrating the synthesis of the molecules by microlightning, Zare’s team has revealed a novel prebiotic chemistry route. According to Space.com, the process has the potential to explain most of the Miller-Urey hypothesis constraints while giving a statistically plausible route to the origin of life.
The broader scientific community also has been educated. Dr Eva Stueeken, who is a life origins scientist at the University of St Andrews, said the finding was “fascinating” and stressed that in the future experiments would have to be carried out using mixed composition liquids and gases. Meanwhile, University of California, Santa Cruz biochemist David Deamer confirmed microlightning “can now be added to the list of possible energy sources available to drive organic synthesis before life began.” Those are not exactly words of revolutionary hope of this study to redefine our idea of prebiotic chemistry.
Aside from the importance of its implications to our past on Earth, this research also awakens the imagination as to the possibility of life on other parts of the universe. If microlightning can form organic molecules in certain circumstances, then is it the same with other moons and planets that possess liquid and atmospheric circumstances as well? Astrobiologists have thought of water as one of those things that make a location habitable, but that its worth, based on this study, is greater than previously thought.
Perhaps such life arose from tiny sparks in water sprayings of mist, radical but unassuming. It leads one to think about the order by which one might make change, that even the lightest touch like a feather might precipitate abhorrent results. “A small spark can start a great fire.” Zare surmises. Perhaps microlightning even initiated the chemistry to construct life in all its present form. And for researchers and scientists, too, this research is an invitation to recall the awe of nature and marvel and how its system patiently holds out to be unlocked in the most unlikely of locations. Through further tests and seeking, the science of micro lightning might hold within its figures not only the past, but even perhaps the potentiality of life throughout the entire universe.
The Earth was a hot, barren world four billion years ago consisting of thunder waves, thundering waterfalls, and stormy atmospheric gases such as methane, ammonia, and nitrogen. Such an environment would be unfriendly to life, but these were the sparks needed for triggering complex chemical reactions. In a first ever test, Zare’s scientists mimicked those ancient conditions by shooting water into an atmosphere chamber that has been deemed virtually identical to the atmosphere of early Earth. What did they learn? Microlightning was what ignited the building blocks of such big organic molecules as glycine, a protein building block of amino acids, and uracil, an RNA nucleotide base.
This microlightning is due to the electrical charges that are built up in single water drops by sprays or splashes. In this case, the big drops are positively charged and small drops are negatively charged. When the negative drops collide with one another, electrons are passed from one to another, releasing zaps of energy. Unlike blinding lightning bolts that curve miles, microlightning spans a billionth of a meter. But it’s powerful enough to drive chemical reactions that synthesize the bricks of life. Thanks to high speed cameras, Zare’s scientists were able to record these brief sparks, offering photographic proof of their technical skill.
The implications for research are stunning. The Miller Urey hypothesis has been celebrated and criticized for a half century. When Stanley Miller and Harold Urey demonstrated in their 1952 pioneering experiment that amino acids were created through the discharge of lightning in an early atmosphere, the article was received warmly. Others had long argued that lightning discharge didn’t occur frequently enough and the ocean was too vast to produce significant organic molecules thereby. Microlightning is a superior option. “On early Earth, there were water sprays all over the place into crevices or against rocks, and they can accumulate and create this chemical reaction,” Zare said in a press release.
This study also presumes that the ancient Earth atmosphere had an abundance of chemicals with raw materials but no carbon-nitrogen molecules of proteins, enzymes, and nucleic acids. By demonstrating the synthesis of the molecules by microlightning, Zare’s team has revealed a novel prebiotic chemistry route. According to Space.com, the process has the potential to explain most of the Miller-Urey hypothesis constraints while giving a statistically plausible route to the origin of life.
The broader scientific community also has been educated. Dr Eva Stueeken, who is a life origins scientist at the University of St Andrews, said the finding was “fascinating” and stressed that in the future experiments would have to be carried out using mixed composition liquids and gases. Meanwhile, University of California, Santa Cruz biochemist David Deamer confirmed microlightning “can now be added to the list of possible energy sources available to drive organic synthesis before life began.” Those are not exactly words of revolutionary hope of this study to redefine our idea of prebiotic chemistry.
Aside from the importance of its implications to our past on Earth, this research also awakens the imagination as to the possibility of life on other parts of the universe. If microlightning can form organic molecules in certain circumstances, then is it the same with other moons and planets that possess liquid and atmospheric circumstances as well? Astrobiologists have thought of water as one of those things that make a location habitable, but that its worth, based on this study, is greater than previously thought.
Perhaps such life arose from tiny sparks in water sprayings of mist, radical but unassuming. It leads one to think about the order by which one might make change, that even the lightest touch like a feather might precipitate abhorrent results. “A small spark can start a great fire.” Zare surmises. Perhaps microlightning even initiated the chemistry to construct life in all its present form. And for researchers and scientists, too, this research is an invitation to recall the awe of nature and marvel and how its system patiently holds out to be unlocked in the most unlikely of locations. Through further tests and seeking, the science of micro lightning might hold within its figures not only the past, but even perhaps the potentiality of life throughout the entire universe.
