Tags Origin of Life

Tag: Origin of Life

Losing genes and surviving: When ‘less is more’ in the evolution...

"Loss is nothing else but change and change is nature's delight" says the quote by the philosopher and emperor Marcus Aurelius, which opens the...

Rosetta’s comet contains ingredients for life

Ingredients crucial for the origin of life on Earth, including the simple amino acid glycine and phosphorus, key components of DNA and cell membranes,...

Violent young Sun may have seeded life on Earth: study

Life on Earth may have sprung from bombardment by a youthful Sun lashing out with flares as potent as a thousand trillion exploding atomic...

Oxygen atmosphere recipe = tectonics + continents + life

Earth scientists from Rice University, Yale University and the University of Tokyo are offering a new answer to the long-standing question of how our...

Comet craters — literal melting pots for life on Earth

Geochemists from Trinity College Dublin's School of Natural Sciences may have found a solution to a long-debated problem as to where - and how...

How and why single cell organisms evolved into multicellular life

Throughout the history of life on Earth, multicellular life evolved from single cells numerous times, but explaining how this happened is one of the...

Wealth of unsuspected new microbes expands tree of life

The tree of life, which depicts how life has evolved and diversified on the planet, is getting a lot more complicated. Researchers at the University...

When life returned after a volcanic mass extinction

A worldwide mass extinction 201.5 million years ago wiped out 60 percent of sea life, including coral reefs and shelled marine animals. On land,...

Supernovae showered Earth with radioactive debris

An international team of scientists has found evidence of a series of massive supernova explosions near our solar system, which showered Earth with radioactive...

Early Earth may have been ice cold

When Earth's first organisms were formed, it may have been in an ice cold ocean. New research, published in Science Advances, indicates that both...

Young sun-like star shows a magnetic field was critical for life...

Nearly four billion years ago, life arose on Earth. Life appeared because our planet had a rocky surface, liquid water, and a blanketing atmosphere....

Oxygen was present in the atmosphere much earlier than previously assumed

Reconstructing the emergence and evolution of life on our planet is tightly linked to the questions as to when and to what extent Earth's...

Oxygen-starved oceans held back life’s recovery after the ‘Great Dying’

Stanford scientists have found that chronically low levels of oxygen throughout the oceans hampered the recovery of life after the Permian-Triassic extinction, the most...

Modern microbial ecosystems provide window to early life on Earth

New research from a University of Miami (UM) Rosenstiel School of Marine and Atmospheric Science-led science team provides new insight into one of the...

Examining how terrestrial life’s building blocks may have first formed

How did life begin? This is one of the most fundamental questions scientists puzzle over. To address it, they have to look not just...

Nearing the limits of life on Earth

It took Jackie Goordial over 1000 Petri dishes before she was ready to accept what she was seeing. Or not seeing. Goordial, a post-doctoral...

Enough oxygen on Earth long before animals rose

Oxygen is crucial for the existence of animals on Earth. But, an increase in oxygen did not apparently lead to the rise of the...

Life exploded on Earth after slow rise of oxygen

It took 100 million years for oxygen levels in the oceans and atmosphere to increase to the level that allowed the explosion of animal...

Geologists focus on mineral for clues to beginning of biological life...

On the early Earth, light came not only from the sun but also from the incessant bombardment of fireball meteorites continually striking the planet....

A whiff from blue-green algae likely responsible for Earth’s oxygen

Earth's oxygen-rich atmosphere emerged in whiffs from a kind of blue-green algae in shallow oceans around 2.5 billion years ago, according to new research...

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