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The beginning of life

The Cambrian Bang. Illustration: depositphotos.com

New findings regarding the connection between the increase of oxygen in the atmosphere and the development of complex life

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Hebrew University researchers have revealed new findings regarding the connection between the increase in oxygen in the atmosphere and oceans on Earth, and the development of complex life. The study indicates that the rise of oxygen occurred after the development of complex life, contrary to previous assumptions
This image, taken by NASA's Perseverance rover on Aug. 6, 2021, shows the hole drilled into Martian rock in preparation for the rover's first attempt to collect a sample. It was captured by one of the rover's cameras in what the rover's science team called "cobblestone" in the area. The crater floor is broken and rough" in Jezero Crater. Credit: NASA/JPL-Caltech

Did life exist on Mars and other planets? We may soon know through artificial intelligence

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Gamma ray burst (Image Credit: NASA/Swift/Mary Pat Hrybyk-Keith and John Jones via NASA)

Elements essential to life were created following a massive explosion in space

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Prof. Toufik's hypothesis on the origin of life: from individual peptides without structure (turquoise, left) to proteins with structure and the ability to bind to DNA (turquoise, right), through an intermediate stage of peptides that organize into dimers within droplets (center)

The cradle of protein evolution

A day after Prof. Dan Toufik's death, his hypothesis about the origin of life was significantly strengthened
The structure of the protoribosome, courtesy of the Weizmann Institute

Prof. Ada Yonat: It is possible that the missing link between pre-life and biological life has been discovered

A significant boost to the protoribosome theory - a tiny molecular pocket made of RNA that appeared in the ancient soup and encouraged connections between amino acids
Arthropod (Naroia). Credit: Dr. Xiaoya Ma

Modern animals may have originated in a shallow, nutrient-rich Delta

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The ancestors of many species of animals alive today may have lived in the delta of present-day China, new research suggests
The beginning of life. Illustration - shutterstock

In the beginning there was soap

What was the first chemical entity that met the basic conditions for life?
The origin of life from simple molecules to DNA. Illustration: depositphotos.com

to identify patterns in the ancient soup from which life was created

In a new laboratory at the institute, they are examining how basic chemical reactions led to the creation of complex life
A simple mechanism could explain the growth and self-replication of protocells - the putative ancestors of modern living cells, illustration: depositphotos.com

The origin of life: the first cells divided with the help of temperature

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A simple mechanism could explain the growth and self-replication of protocells - the putative ancestors of modern living cells
Earth as a snowball. Illustration: depositphotos.com

Changes in the Earth's rotation axis may have encouraged the development of life

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Scientists from the University of Southampton in the United Kingdom have discovered that it is possible that changes in the Earth's rotation axis encouraged the development and prosperity of complex life despite the most extreme climate that has ever existed on Earth.
The oxygen revolution left its geochemical record in the iron deposits in the earth's mantle and rocks

The oxygen before the oxygen revolution

By tracing the evolution of proteins, Weizmann Institute of Science scientists have charted the history of oxygen availability on Earth and solved a long-standing scientific puzzle
On the way to the ancestors of the cells: in the presence of RNA, the primitive peptide leads to the separation of an event (like the separation of oil droplets in water), which enables self-assembly and the creation of a configuration of a kind of primitive "compartment"

The building block of the first proteins was discovered

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A view of a cluster of young stars (million years old), known as the North American Nebula or the Plesian Nebula (top right). This is a clean and processed version of the original Spitzer Space Telescope image. NASA/JPL-Caltech. Illustration: shutterstock

Did the building blocks of life form in interstellar clouds?

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A diagram showing the development of life throughout the geological periods. Source: United States Geological Survey / Wikimedia.

How were the first cells formed? with protein

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The phase corresponds to intermolecular sharing. Higher temperatures, and steep temperature drops - such as those that characterized the narrow, water-filled pores that existed within volcanic rocks and in which the synthesis of ancient DNA could have taken place. Photo: Dieter Braun

How was the first DNA molecule created?

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Dr. Maria Louisa Romero-Romero and Prof. Dan Toufik. Time travel. Photo: Weizmann Institute spokesperson

Following the first proteins

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From: "Life Begins Here". Illustration: Christina Sommerer

The happiness to live, from the introduction to the book Life Begins Here - the never-ending search for the last common ancestor

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Hot springs within the ocean, 4.2 billion year old bacteria were discovered in these environments. From Wikipedia

The first historical model for the formation of life received a significant boost

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Prof. Floyd Romesberg (right) and research student Yorke Zhang who led the new study at the Scripps Research Institute, along with Brian Lamb (not pictured). Photo: Scripps Research Institute (Photo: Madeline Schmidt)

Scientists have created the first semi-synthetic living creature

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alien planet Life may be extinct before a stake is driven in. Illustration: shutterstock

Why are the aliens silent? Because they are dead!

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Bromine, one of the 92 common chemical elements in nature, is the 28th element in number among the essential substances for the development of life of every organism on earth. Illustration: shutterstock

It was found that the element bromine is essential for life

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A planet with a thick atmosphere. Image: NASA

Did pre-living molecules form in the atmospheres of distant planets?

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Cross section showing how continents slide under each other. Image: NASA

Is life also responsible for the creation of the continents on Earth?

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Ancient soils in South Africa containing layers billions of years old. Courtesy of researchers from the University of Copenhagen and the University of British Columbia.

Oxygen appeared in the atmosphere up to 700 million years earlier than we previously thought

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A living creature discovered at a height of 27 kilometers in the atmosphere. Did it come from space? Photo: University of Sheffield

Living creatures from space or just drifting?

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