The main topic of a recent Science article is a claim that life on Earth was jumpstarted by a very early hit by a moon-size object that precipitated a metallic hailstorm. But while sketching that scenario, which wowed a 2018 conference in Atlanta in October, Robert F. Service also recounts some of the more interesting […]
Origin Of Life
Can a computer simulation show that helium compounds exist on Earth?
That could impact our understanding of early Earth. Helium is the second most abundant element in the universe but finding it on Earth is tricky. So researchers resorted to a computer simulation and found a promising possible compound: Helium-bearing compounds have, until very recently, been considered unlikely to exist under the physical conditions on or […]
The Scientist: Life on land half a billion years older than thought is a top 2018 story
From a piece that didn’t number the stories, this one was second: In July, scientists announced that they had uncovered the earliest evidence of terrestrial life on Earth. “This work represents the oldest and least ambiguous work that we have so far that life existed on land already 3.2 billion years ago,” Kurt Konhauser, a […]
New kingdoms of life: The “Tree of Life” is a hard concept to get past
The recent find of a probable new kingdom of life in a routine dirt sample in Nova Scotia (an east coast province of Canada) raises an obvious question: How much more is there out there that is underfoot, so to speak, that does not fit our tidy categories? Just yesterday, we were looking at the […]
Biologist Wayne Rossiter on non-religious doubts about universal common ancestry
Wayne Rossiter, author of Shadow of Oz: Theistic Evolution and the Absent God, talks about predictable claims from theistic evolution: To catch people up to speed, in a facebook conversation, [Jim] Stump made the statements, “Common ancestry [here he means Universal Common Ancestry] is a multiply confirmed theory that explains the observable data in detail. […]
If life might be “programmed into” the laws of nature, why not humans?
From a review of Universe in Creation: A New Understanding of the Big Bang and the Emergence of Life by astrophysicist Roy R. Gould: Whichever specific origin of life theory we turn to, the thesis that life is somehow programmed into the universe feels uncomfortable but also attractive. Uncomfortable, because it seems to carry a […]
Researchers: Ribosome translational system dates back to earliest Earth
From ScienceDaily: So audacious was Marcus Bray’s experiment that even he feared it would fail. In the system inside cells that translates genetic code into life, he replaced about 1,000 essential linchpins with primitive substitutes to see if the translational system would survive and function. It seemed impossible, yet it worked swimmingly, and Bray had […]
New life form more different from others “than animals are from fungi”
Hemimastigotes: Like animals, plants, fungi and ameobas — but unlike bacteria — hemimastigotes have complex cells with mini-organs called organelles, making them part of the “domain” of organisms called eukaryotes rather than bacteria or archaea. About 10 species of hemimastigotes have been described over more than 100 years. But up until now, no one had […]
Moshe Averick: When does a “gap” point beyond conventional science?
Rabbi Moshe Averick, author of The Confused World of Modern Atheism (Mosaica Press, 2016) addresses the “God of the Gaps” – the claim that the intersections between the material and the immaterial in nature are just “gaps” waiting to be filled in (with special reference to the origin of life): The first thing I would bring […]
Probability of a single protein forming by chance
Hat tip: Philip Cunningham April 7, 2017
Landmark origin of life conference videos resurface
From Suzan Mazur, author of The Origin of Life Circus and The Paradigm Shifters: Overthrowing ‘the Hegemony of the Culture of Darwin’, links to some vintage films of origin of life conferences funded by chemist Harry Lonsdale (1932–2014): Before he died Harry Lonsdale sent me a package with his book on politics—Running: Politics, Power, and […]
Might Earth’s deep subsurface be “brimming with life”?
Geobiologist Alexis Templeton thinks it matters: We humans tend to see the world as a solid rock coated with a thin layer of life. But to scientists like Templeton, the planet looks more like a wheel of cheese, one whose thick, leathery rind is perpetually gnawed and fermented by the microbes that inhabit its innards. […]
Those most ancient Greenland “fossils” are not really life, new team says
Getting it right is important for the search for life on Mars: Found in 3.7-billion-year-old rocks in Greenland, the mounds strongly resemble cone-shaped microbial mats called stromatolites, researchers reported in 2016. But a new analysis of the shape, internal layers and chemistry of the structures suggests that the mounds weren’t shaped by microbes but by […]
Oldest evidence for animals found at 635 mya
Instead of looking for fossil at that age, the researchers looked for biomarkers: Rather than searching for conventional body fossils, the researchers have been tracking molecular signs of animal life, called biomarkers, as far back as 660-635 million years ago during the Neoproterozoic Era. In ancient rocks and oils from Oman, Siberia, and India, they found a […]
Researchers: Life forms display an “optimal tradeoff between stability and instability”
From ScienceDaily: Biologists know a lot about how life works, but they are still figuring out the big questions of why life exists, why it takes various shapes and sizes, and how life is able to amazingly adapt to fill every nook and cranny on Earth. An interdisciplinary team of researchers at Arizona State University […]