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Tree with many scattered branches.
Scientists Resurrect Ancient Rubiscos to Understand Their Evolution
A team proposes that the addition of a small accessory subunit to the carbon-fixing enzyme was key to improving its catalytic properties and specificity to CO2.
Scientists Resurrect Ancient Rubiscos to Understand Their Evolution
Scientists Resurrect Ancient Rubiscos to Understand Their Evolution

A team proposes that the addition of a small accessory subunit to the carbon-fixing enzyme was key to improving its catalytic properties and specificity to CO2.

A team proposes that the addition of a small accessory subunit to the carbon-fixing enzyme was key to improving its catalytic properties and specificity to CO2.

earth

A headshot of James Lovelock standing between tree trunks
Gaia Theorist James Lovelock Dies at 103
Andy Carstens | Jul 29, 2022 | 3 min read
Lovelock’s environmental research improved humanity’s understanding of pollutants, but he’s best known for his hypothesis that Earth behaves like a self-regulating organism, which changed how scientists view the planet.
Illustration of pink strands of RNA on a blue background
Synthetic RNA Can Build Peptides, Hinting at Life’s Beginnings
Jef Akst | May 12, 2022 | 2 min read
Researchers engineered strands of RNA that can link amino acids together, suggesting a way that RNA and proteins may have emerged together to create the earliest forms of life.
A purple bulge of microbes on the bottom of a lake
Longer Days Led to Oxygen Buildup on Early Earth: Study
Amanda Heidt | Aug 3, 2021 | 4 min read
Researchers propose that some of the planet’s earliest photosynthesizers benefited from a slowing of the Earth’s rotation that allowed them to produce a surplus of oxygen and paved the way for more complex life.  
a micrograph of putative sponge fossils with small tunnel-like structures in white on a black background
890-Million-Year-Old Fossils Are Sponges, Oldest Animals: Study
Abby Olena, PhD | Jul 28, 2021 | 4 min read
If confirmed, the findings indicate that animals appeared on Earth millions of years earlier than previously believed.
lightning, life, Earth, meteorite, phosphorous, fulgurite, schreibersite, DNA, RNA, microbes, evolution
Lightning Might Have Sparked Early Life on Earth
Asher Jones | Mar 17, 2021 | 2 min read
Electrical storms, rather than meteorites as scientists had previously thought, could have unlocked phosphorus necessary for the development of ancient life, according to a new study.
chibanian chiba magnetic field polarity reversal japan geology
Newly Named Chibanian Age Demarcates Earth’s Last Magnetic Flip
Kerry Grens | Feb 17, 2020 | 2 min read
The time period, which spans 770,000 to 126,000 years ago, started with a reversal of the planet’s magnetic field.
Microbe Miner: A Profile of Rob Knight
Anna Azvolinsky | Jun 1, 2019 | 9 min read
Developing computational tools to analyze the reams of microbial sequencing data his lab generates, the UC San Diego microbiologist is a pioneer of microbiome research.
Fossilized Tubes Point to Super-Ancient Mobile Organisms
Jef Akst | Feb 12, 2019 | 1 min read
If the structures identified in a 2.1-billion-year-old rock are really signs of burrowing organisms, it would push back the earliest known mobile organisms by 1.5 billion years.
Life Thrives Within the Earth’s Crust
Catherine Offord | Oct 1, 2018 | 10+ min read
From journeys into mines to explorations of volcanoes on the ocean floor, deep voyages reveal the richness of the planet’s deep biosphere.
Geologists, paleontology, excavation
Oldest Evidence of Terrestrial Life on a Young Earth
Anna Azvolinsky | Jul 23, 2018 | 4 min read
Microbes were living on land as early as 3.22 billion years ago, fossilized rocks show, 500 million years earlier than previously documented.
Rivers and Streams Compose Much More of Earth's Surface Than Thought
Shawna Williams | Jun 28, 2018 | 1 min read
A new estimate bumps up the area previously estimated to be covered by running water by more than 40 percent.
Humanity May Have Flourished After Supervolcano Eruption
Diana Kwon | Mar 13, 2018 | 2 min read
A new study counters the popular theory that after Mount Toba blew its top 74,000 years ago, humans almost went extinct.
Earth: Home to 1 Trillion Microbial Species
Catherine Offord | May 3, 2016 | 1 min read
A new analysis of microbial data estimates that the world is home to 1 trillion species—of which only 0.001 percent have been discovered.
Life Before 4 Billion Years Ago?
Jef Akst | Oct 20, 2015 | 1 min read
A new estimate of the origin of life on Earth pushes back the date by 300 million years.
Is Earth Special?
David Waltham | Mar 1, 2014 | 3 min read
Reconsidering the uniqueness of life on our planet
Book Excerpt from Lucky Planet
David Waltham | Feb 28, 2014 | 3 min read
In the book's prologue, author David Waltham compares a fictitious planet to Earth, highlighting the biologically supportive luck that our planet has enjoyed.
Keeping Up with Climate Change
Kate Yandell | Jul 24, 2013 | 2 min read
In order to adapt to this century’s changing temperatures, vertebrates will need to evolve much faster than in previous eras.
Opinion: The Precarious Earth
Frank Biermann | Jun 18, 2012 | 3 min read
People are currently driving the planet on a crash course with global stability. Something must be done.
World Population Hits 7 Billion
Tia Ghose | Oct 31, 2011 | 1 min read
Sometime today, Earth’s 7 billionth person was born.
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