News tagged with origins of life
Researchers make the case that modern life sprang from early mega-organism
(PhysOrg.com) -- A lot of work has been done over the years to nail down the origins of life, with much speculation given to whatever first bit of “life” appeared from what was before, nothing but non-living material. ...
Nov 28, 2011 |
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Meteorite holds clues to organic chemistry of the early Earth: study
(PhysOrg.com) -- Carbonaceous chondrites are a type of organic-rich meteorite that contain samples of the materials that took part in the creation of our planets nearly 4.6 billion years ago, including materials ...
Space & Earth / Space Exploration
Jun 09, 2011 |
4.7 / 5 (6) |
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Loch fossils show life harnessed sun and sex early on
Remote lochs along the west coast of Scotland are turning up new evidence about the origins of life on land.
Other Sciences / Archaeology & Fossils
Apr 13, 2011 |
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Did clay mould life's origins?
(PhysOrg.com) -- An Oxford University scientist has taken our understanding of the origin of life a step further.
Apr 04, 2011 |
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Comets may have brought life to Earth: new study
(PhysOrg.com) -- Life on Earth as we know it really could be from out of this world. New research from Lawrence Livermore National Laboratory scientists shows that comets that crashed into Earth millions of ...
Sep 13, 2010 |
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Zapping Titan-like atmosphere with UV rays creates life precursors
The first experimental evidence showing how atmospheric nitrogen can be incorporated into organic macromolecules is being reported by a University of Arizona team.
Jun 29, 2010 |
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Peptides may hold 'missing link' to life
Emory University scientists have discovered that simple peptides can organize into bi-layer membranes. The finding suggests a "missing link" between the pre-biotic Earth's chemical inventory and the organizational ...
May 06, 2010 |
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Chemical snapshot: Murchison meteorite reveals diversity of early Solar System
(PhysOrg.com) -- New studies of a meteorite that crashed to Earth four decades ago have found it probably contains millions of organic compounds. The findings shed light on the molecular complexity that existed ...
Space & Earth / Space Exploration
Feb 17, 2010 |
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New research rejects 80-year theory of 'primordial soup' as the origin of life
For 80 years it has been accepted that early life began in a 'primordial soup' of organic molecules before evolving out of the oceans millions of years later. Today the 'soup' theory has been over turned in a pioneering paper ...
Feb 02, 2010 |
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Scientists Reproduce a Building Block of Life in Laboratory
(PhysOrg.com) -- NASA scientists studying the origin of life have reproduced uracil, a key component of our hereditary material, in the laboratory.
Nov 06, 2009 |
4.9 / 5 (28) |
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Scientists propose new hypothesis on the origin of life
The Miller-Urey experiment, conducted by chemists Stanley Miller and Harold Urey in 1953, is the classic experiment on the origin of life. It established that the early Earth atmosphere, as they pictured it, ...
Space & Earth / Earth Sciences
Sep 04, 2009 |
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Back to basics: Scientists discover a fundamental mechanism for cell organization (w/Video)
Scientists have discovered that cells use a very simple phase transition -- similar to water vapor condensing into dew -- to assemble and localize subcellular structures that are involved in formation of the embryo.
May 21, 2009 |
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A salt-free primordial soup?
Most scientists who study the origin of life assume that it occurred in the ocean. But a minority view is that ions in seawater may interfere with prebiotic chemistry, making a freshwater environment more ...
Jan 19, 2012 |
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Rock rafts could be 'cradle of life'
(PhysOrg.com) -- Floating rafts of volcanic pumice could have played a significant role in the origins of life on Earth, scientists from Oxford University and the University of Western Australia have suggested.
Space & Earth / Earth Sciences
Sep 02, 2011 |
4.8 / 5 (6) |
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Meteorites: Tool kits for creating life on Earth
Meteorites hold a record of the chemicals that existed in the early Solar System and that may have been a crucial source of the organic compounds that gave rise to life on Earth. Since the 1960s, scientists have been trying ...
Space & Earth / Space Exploration
Aug 08, 2011 |
4.3 / 5 (6) |
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