Life first emerged in ‘warm little ponds’

Written by Ian Johnston

Life on Earth began up to 4.5 billion years ago as carbon-rich meteors bombarded the planet and leached the essential elements into “warm little ponds”, according to new research. It was in this nutrient-rich broth that the first self-replicating molecules, with the first genetic code for life, were born.

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DNA surgery on embryos removes disease

Written by James Gallagher

Embryo researchImage copyright: GETTY IMAGES

Precise “chemical surgery” has been performed on human embryos to remove disease in a world first, Chinese researchers have told the BBC.

The team at Sun Yat-sen University used a technique called base editing to correct a single error out of the three billion “letters” of our genetic code. They altered lab-made embryos to remove the disease beta-thalassemia. The embryos were not implanted.

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Plate tectonics: 50th Anniversary of Great Discovery

Written by Jonathan Amos

Dan McKenzieImage copyright: THE GEOLOGICAL SOCIETY, MCKENZIE ARCHIVE
Image caption: Dan McKenzie: The young scientists of the 1960s sought answers that had eluded their elders

What would you put on your list of the great scientific breakthroughs of the 20th Century? General relativity? Quantum mechanics? Something to do with genetics, perhaps?

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Body clock scientists win Nobel Prize

Written by James Gallagher

body clock cartoon imageImage copyright: GETTY IMAGES

Three scientists who unravelled how our bodies tell time have won the 2017 Nobel Prize for physiology or medicine. The body clock – or circadian rhythm – is the reason we want to sleep at night, but it also drives huge changes in behaviour and body function. The US scientists Jeffrey Hall, Michael Rosbash and Michael Young will share the prize.

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Antarctic ozone depletion due to Erebus volcano gas emissions

Written by Zuev, Zueva, Savelieva & Gerasimov

New Antarctic study shows  hydrogen chloride and sulphur dioxide emitted by Erebus volcano are a significant factor in ozone depletion.  Erebus volcanic gases reach the ozone layer via cyclones and the polar vortex.  High Erebus volcanic activity in the early 1980s resulted in the ozone hole area increase.

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How Dinosaurs Evolved Beaks to become Birds

Written by Michael J. Benton

    

dinosaur bird
An artist’s impression of the evolution of birds from dinosaurs.Jason Brougham

Once you realise that many dinosaurs had feathers, it seems much more obvious that they probably evolved into birds. But there’s still a big question. How did a set of dinosaurian jaws with abundant teeth (think T. rex) turn into the toothless jaws of modern birds, covered by a beak? Two things had to happen in this transition: suppression of the teeth and growth of the beak. Now new fossil evidence has shown how it happened.

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Computers to Beat You in an Argument

Written by Professor Chris Reed

Speech bubbles coming out of computerImage copyright: GETTY IMAGES

Humans are used to being outdone by computers when it comes to recalling facts, but they still have the upper hand in an argument. For now. It has long been the case that machines can beat us in games of strategy like chess.

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This Year’s Atlantic Hurricanes In Perspective

Written by Paul Homewood

The recent spate of hurricanes has inevitably attracted attention and spawned wildly inaccurate headlines, such as “a 1000 year event”, “the most powerful Atlantic storm on record”, “storm of the century”, and even “most deadly storm in history”.

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