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Where is the Origin of Life on Earth?

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Where is the Origin of Life on Earth?

To answer the iconic question “Are We Alone?”, scientists around the world are also attempting to understand the origin of life. There are many pieces to the puzzle of how life began and many ways to put them together into a big picture. Some of the pieces are firmly established by the laws of chemistry and physics. Others are conjectures about what Earth was like four billion years ago, based on extrapolations of what we know from observing Earth today. However, there are still major gaps in our knowledge and these are necessarily filled in by best guesses.

We invited talented scientists to discuss their different opinions about the origin of life and the site of life’s origin. Most of them will agree that liquid water was necessary, but if we had a time machine and went back in time, would we find life first in a hydrothermal submarine setting in sea water or a fresh water site associated with emerging land masses?

Biologist David Deamer, a Research Professor of Biomolecular Engineering at the University of California, Santa Cruz, and multi-disciplinary scientist Bruce Damer, Associate Researcher in the Department of Biomolecular Engineering at UC Santa Cruz, will describe their most recent work, which infers that hydrothermal pools are the most plausible site for the origin of life. Both biologists have been collaborating since 2016 on a full conception of the Terrestrial Origin of Life Hypothesis.

Lynn Rothschild, Senior Scientist at NASA’s Ames Research Center and Adjunct Professor of Molecular Biology, Cell Biology, and Biochemistry at Brown University, who is an astrobiologist/ synthetic biologist specializing in molecular approaches to evolution, particularly in microbes and the application of synthetic biology to NASA's missions, will provide an evolutionary biologist’s perspective on the subject.
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Origin of Life - How Life Started on Earth

Four and a half billion years ago, the young Earth was a hellish place—a seething chaos of meteorite impacts, volcanoes belching noxious gases, and lightning flashing through a thin, torrid atmosphere. Then, in a process that has puzzled scientists for decades, life emerged. But how? Mineralogist Robert Hazen as he journeys around the globe. From an ancient Moroccan market to the Australian Outback, he advances a startling and counterintuitive idea—that the rocks beneath our feet were not only essential to jump-starting life, but that microbial life helped give birth to hundreds of minerals we know and depend on today. It's a theory of the co-evolution of Earth and life that is reshaping the grand-narrative of our planet’s story.

New evidence emerges on the origins of life


7 Theories on the Origin of Life


The Origin of Life on Earth: Theories and Explanations


Michio Kaku and Sadhguru on the Future Technologies by the year 2100
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The mysterious origins of life on Earth - Luka Seamus Wright

Where on Earth did life begin? Explore the hydrothermal vents in Earth’s crust as simple compounds gave way to complex life.

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Billions of years ago, simple organic compounds assembled into more complex coalitions that could grow and reproduce. At the time, Earth had widespread volcanic activity and a hostile atmosphere that made it almost devoid of a suitable environment for living things. So where did life begin? Luka Wright searches for the cradle of life that gave rise to the billions of species that inhabit our planet.

Lesson by Luka Seamus Wright, directed by Nick Hilditch.

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The Origin of Life on Earth

You must have wondered about it before, haven't you? How did life begin on earth? I mean the very first thing. The first unicellular organism, billions of years ago. Is it even possible? As it happens, our understanding of chemistry, biochemistry, and biology has become so sophisticated over the years, that we now have a pretty reasonable grasp as to how abiogenesis must have occurred. This is the spontaneous generation of life from non-living material. As incredible as it sounds, there is a lot of science to discuss here, so let's get into it!

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Origin of life on earth - How Life started on earth

Understanding of how life started on the earth. Life appeared on earth almost 4 billion years ago.

Origin of life on earth can be understood in the background of origin of earth and universe.

With Big Bang, the universe expanded and temperature came down. The gravity condensed gases and formed galaxies. Earth evolved around 4.5 billion years ago, in Milky Way galaxy.

On early earth, there was a hostile environment. Water vapor, CH4, NH3, CO2 releasing from earth surface.

There are several theories on origin of life.

Panspermia: According to ancient Greeks, units of life called spores transferred to earth.

Spontaneous Generation: believes life arouse from rotting and decayed material.

But, spontaneous generation was turned down by, Louis Pasteur’s experiments.

In pre-­‐sterilized flasks life didn’t evolve from dead yeast but in other flask open to air, which contains life forms like bacteria, living organism arose from dead yeast. Implying life comes only from pre-­‐existing life.

However how the first life came on earth?

Oparin and halden proposed that, first form of life could have come from preexisting non-­‐living organic molecules (RNA, Protein), after the chemical evolution in which organic molecules formed from inorganic constituents.

To test this hypothesis, Miller, at laboratory scale, created similar condition of early earth.

He set up, electric discharge in a closed flask containing CH4, NH3, H2 and water vapor at 800C and observed formation of amino acid, building blocks of protein.

With this evidence chemical evolution theory is partly accepted.

Life Begins: Crash Course Big History #4

In which Hank and John Green teach you about life on Earth. They won't be giving advice on how life should be lived, because this is a history series. Instead, they'll teach you about the earliest forms of life on Earth, and some of the ways that they developed into the types of life we know, love, and sometimes don't love so much (I'm looking at you here, opossums). You'll learn about prokaryotes, eukaryotes, panspermia, reproduction, a little about DNA, and even a thing or two about trees. Maybe.

Crash Course Biology
DNA Structure and Replication Episode:

DNA Transcription and Translation:

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Can Science Explain the Origin of Life?

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Darwin's theory of biological evolution helps us understand how simple life forms can give rise to complex lifeforms, but how did the first reproducing creatures come about? The origin of life needs its own explanation.

Scientists don't currently have a complete explanation for life's origins, but different labs around the globe are looking into the idea that life may have emerged from chemistry. In this animation you will learn why they are studying this idea, and you'll get to see a few of the fascinating things they have discovered.

Here are some links for further learning (organized by topic):

OVERVIEW OF CURRENT RESEARCH

Here David Deamer gives a wonderful overview of our current understanding of the origin of life. This hour long lecture is presented in clear language for all to follow:



SELF-ASSEMBLY

News article on the self assembly of gene-like columns:

Video series on the self assembly of primitive cell membranes:


Video interview with chemist Jack Szostak. In it he goes over his work on self-assembling membranes and genes.


Scientific journal exploring molecules with self-assembly properties. (You need a subscription to the journal to get past the abstract)



RNA SYNTHESIS

Video on John Sutherland's production of RNA nucleotides



EARLY FOSSILS

David Attenborough explores the lives of early organisms found in the fossil record. This video explores the evolution of early organisms but does not go over the origin of the first living things.



METABOLIC PATHWAYS

This research explores a primitive metabolic pathway which could have easily formed through chemical evolution on the ancient earth (you need a subscription to the journal to get past the abstract)


Websites for further learning:

This Interactive website outlines many of the discoveries made by life origin researchers.

This website explains the research goals and findings of the Center for Chemical Evolution at Georgia Tech:

CORRECTIONS:
In this animation I drew the meteorite sugars incorrectly. See this paper for accurate molecular diagrams of the sugars and sugar derivatives found in meteorites:

The chemical origin of life on earth | Marcel Eleveld | TEDxAlkmaar

How did life originate? This is one of the most fundamental questions of humankind and the central question of my PhD research. In my talk I will guide you through what we know so far about simple molecules becoming complex living systems and I will share my view on how we can further unravel the mystery of the origin of life of earth. How did life originate? This is one of the most fundamental questions of humankind and the central question of my PhD research. In my talk I will guide you through what we know so far about simple molecules becoming complex living systems and I will share my view on how we can further unravel the mystery of the origin of life of earth. This talk was given at a TEDx event using the TED conference format but independently organized by a local community. Learn more at

Where Did Life Come From? (feat. PBS Space Time and Eons!)

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The origin of life is one of the most important mysteries in all of science. When did life begin? How did life first evolve from chemistry? Where did life get started? In some primordial soup or somewhere else? Let’s journey back to the origin of life, as best as we know it, from the RNA world do the last universal common ancestor of everything alive today.

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Origins of life | Biology | Khan Academy

An overview of the question of how life first arose on Earth.

Watch the next lesson:

Missed the previous lesson? Watch here:

Biology on Khan Academy: Biology, defined as the scientific study of life, is an incredibly broad and diverse field. In many ways, it's as kaleidoscopic and rich as living organisms themselves. Biologists study life at many scales, from cells to organisms to entire ecosystems. Begin your own biological journey here!

About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content.

For free. For everyone. Forever. #YouCanLearnAnything

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Origin of Life: How Life Started on Earth. (2016) HD

Four and a half billion years ago, the young Earth was a hellish place—a seething chaos of meteorite impacts, volcanoes belching noxious gases, and lightning flashing through a thin, torrid atmosphere. Then, in a process that has puzzled scientists for decades, life emerged. But how? Mineralogist Robert Hazen as he journeys around the globe. From an ancient Moroccan market to the Australian Outback, he advances a startling and counterintuitive idea—that the rocks beneath our feet were not only essential to jump-starting life, but that microbial life helped give birth to hundreds of minerals we know and depend on today. It's a theory of the co-evolution of Earth and life that is reshaping the grand-narrative of our planet’s story.
Source: Cosmology Today™
Uploaded for educational purposes only.

Introduction to the Origin of Life

This dramatic video choreographed to powerful music introduces the viewer/student to the Origins of LIFE on Earth. It is designed as a motivational trailer to be shown by Biology and Life Science teachers in middle and high school and college as a visual Introduction to the topic of how life began.

Please rate this video and feel free to comment. If you like it, please help me spread the word by posting links on your media websites. The more students who can enjoy these dramatic videos, the better!

To view all of my videos in Biology, Earth Science, and Astronomy, subscribe to my channel at: I will be releasing new videos periodically.

I wish to thank all the quality video and music producers whose postings enabled me to assemble this video for educational use. To best enjoy this video, turn up your speakers. The music is very powerful and dramatic!

I can customize this video to add your name or school name at the end credits, for a very modest fee. If interested, email me at fsgregs@comcast.net

Until recently, you were able to download my videos for free from my other video storage site (vimeo.com). Recently, however, they began charging a significant membership fee to enable that feature, so I regret that downloading from there is no longer available. However, you can search for and obtain free download addons for your browser that will allow you to download my videos from either YouTube or Vimeo.

A Brief History of Life on Earth: The Full Series

From the Archean Eon to the Holocene Epoch, check out this SciShow mini-series for a primer about life on earth before heading on over to for a deep dive.

Hosted by: Stefan Chin

Part 1 - Survival is Hard: 0:41
Part 2 - When Life Exploded: 9:34
Part 3 - Dinosaur Time!: 19:46
Part 4 - Rise of the Humans: 28:14
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Incredible Animation Shows How Humans Evolved From Early Life

Humans have had a long history. 3.8 million years in the making, to be precise. From the primordial puddle to the modern day, here's how humans have evolved from the first life. The following is a review of the life forms depicted in the video:

Prokaryote, Cyanobacteria, Eukaryote, Choanoflagellate, Platyhelminthes (Flatworms), Pikaia, Haikouichthys, Agnatha, Placodermi, Cephalaspis, Coelacanth, Panderichthys, Tiktaalik, Acanthostega, Ichthyostega, Hynerpeton, Tulerpeton, Westlothiana, Hylonomus, Phthinosuchus, Cynognathus, Repenomamus, Juramaia, Plesiadapis, Carpolestes, Aegyptopithecus, Proconsul, Sivapithecus, Ouranopithecus, Orrorin, Ardipithecus, Australopithecus, Homo erectus, Neanderthal, Homo sapiens.

Special Thanks to Dr. Briana Pobiner, Research Scientist and Museum Educator of the Human Origins Program, Department of Anthropology at the Smithsonian Institute.

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The Origin of Life - Scientific Evidence

011 - The Origin of Life - Scientific Evidence

Paul Andersen discusses scientific evidence of the origin of life on our planet. He begins with a brief discussion of the age of the earth and ends with the future of humanity. He includes geologic, chemical and molecular data.

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All of the images are licensed under creative commons and public domain licensing:
File:Banana and Cross Section.jpg. Wikipedia, the Free Encyclopedia. Accessed November 10, 2013.
File:BlueMarble-2001-2002.jpg. Wikipedia, the Free Encyclopedia. Accessed November 10, 2013.
File:Canyon-diablo-meteorite.jpg. Wikipedia, the Free Encyclopedia. Accessed November 10, 2013.
File:Geologic Clock with Events and Periods.svg. Wikipedia, the Free Encyclopedia. Accessed November 10, 2013.
File:Lord Kelvin Photograph.jpg. Wikipedia, the Free Encyclopedia. Accessed November 10, 2013.
File:Meteor.jpg. Wikipedia, the Free Encyclopedia. Accessed November 10, 2013.
File:Miller-Urey Experiment-en.svg. Wikipedia, the Free Encyclopedia. Accessed November 10, 2013.
File:Miller1999.jpg. Wikipedia, the Free Encyclopedia. Accessed November 10, 2013.
File:PPTCountdowntoSingularityLog.jpg. Wikipedia, the Free Encyclopedia. Accessed November 10, 2013.
File:Raymond Kurzweil Fantastic Voyage.jpg. Wikipedia, the Free Encyclopedia. Accessed November 10, 2013.
File:Tree of Life SVG.svg. Wikipedia, the Free Encyclopedia. Accessed November 10, 2013.
File:Universe Expansion2.png. Wikipedia, the Free Encyclopedia. Accessed November 10, 2013.
File:Urey.jpg. Wikipedia, the Free Encyclopedia. Accessed November 10, 2013.
Volcanoes May Have Sparked First Life | KPBS.org. Accessed November 10, 2013.

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Origins of Life on Earth 4K | The Dawn

Life on earth had humble beginnings. Journey back through time to when the first single-celled life emerged in the deep-sea vents, and watch how organisms developed from those early stages, through billions of years of evolution, adaptation, and differentiation, eventually leading to the dawn of the Eukaryotes.

Our universe exists on an incomprehensible scale; a supposedly infinite darkness, punctuated with at least 70 sextillion stars shining their light through the cosmos. There are more stars out there than there are grains of sand on every beach on Earth, it would be impossible to truly comprehend the immense size of our universe. And yet planets like ours appear to be rare, even on this scale.

A speck of blue in the infinite abyss, we are unique in the solar system. There is one phenomenon found here that we have yet to find anywhere else in the observable universe.

Life. The product of chemistry and biology, and one of the true great marvels of existence. Risen from the primordial soup in the early years of our planet, life forged a path through the ages; driven by the need to survive, and the will to evolve, it changed. Adapted. Crawled from turbulent waters to conquer land and sky, giving rise to empires and dynasties. It is ever-changing, ever-growing, and it will be so for as long as Planet Earth holds water in its oceans and air within its atmosphere. 3.5 billion years of evolution, with every step written in the rocks beneath our feet, the steps that lead towards the rise of humanity.

This documentary uses footage from a number of sources, including the BBC, Discovery Channel, and MelodySheep. All footage belongs to relevant copyright owners, and the use of such footage in this film falls under YouTube's 'fair use' policy. For any enquiries, get in touch via the email found on the channel's 'about' page.

Origin of Life on Earth (Hindi) | Evolution | Info ReX

Origin of Life on Earth (Hindi) | Evolution | Inforex

In this video, you will know about the origin time of our atmosphere, organism, and other species on earth. How our earth suffered from asteroids and volcanoes and why meteorites were important for life on earth. What they brought for the origin of life.
I have covered the ice age period, dinosaur age with their extinction and evolution of mammals.
It also consists origin of cyanobacteria, carbon dioxide, and evolution of the ozone layer.
One of its portions shows how a fish came on the surface and evolved itself into the new species.
I have discussed the evolution of whales and their ancestors.
#originoflifeonearth
#lifeonearthinhindi
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#inforex

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G4 virus in China| H1N1 genes| Hindi


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Types of Stars (in Hindi) || Info Rex


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How unlikely is the origin of life on Earth? | Dmitry Korkin and Lex Fridman

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Origin of Life on Earth (Part-1) - Heredity And Evolution | Class 10 Biology

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Class: 10th
Subject: Biology
Chapter: Heredity And Evolution
Topic Name: Origin of Life on Earth (Part-1)
Points covered in this video:-

Origin of Life on Earth:
J.B.S. Haldane, 1929, British scientist.

That life must have arisen on the primitive earth from a collection of chemicals.

Atoms combined into inorganic molecules, inorganic molecules into simple organic compounds, simple organic compounds into complex organic compound ,that were necessary for life.

Origin of Life on Earth | Manolis Kellis and Lex Fridman

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