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Deep Earth
Anbieter: California Books, Miami, FL, USA
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Deep Earth
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Taschenbuch. Zustand: Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - Deep beneath Earth's ancient crust lies a discovery that could change humanity's understanding of life itself.In Deep Earth, a geological expedition beneath the Canadian Shield uncovers an anomalous fragment embedded deep within some of the planet's oldest rock. Its elemental chemistry is unusual. Its mineralogy suggests a differentiated planetary origin. And laboratory evidence increasingly points toward Mars.But the greater mystery lies inside.Microscopic filament-like structures appear within the fragment, accompanied by organic chemistry and isotopic evidence that resist easy explanation. To some, they resemble ancient microbial fossils. To others, they are exactly the kind of deceptive structures that have misled scientists before.The discovery is extraordinary. The burden of proof is even greater.Geologist Marcus, geochemist Helena Kessler, astrobiologist Aisha Patel, planetary scientists, and a determined skeptic assemble to test every possibility. They examine contamination, mineral look-alikes, isotope signatures, geological context, meteorite provenance, and the physics of material transfer between Mars and Earth.As independent laboratories reproduce key findings, the team moves closer to a conclusion that could reshape astrobiology: the fragment is a serious Martian biosignature candidate. Yet even that does not answer the most provocative question.Could life itself have traveled from Mars to Earth The science of lithopanspermia shows that rocks can move between planets. Whether living organisms can survive ejection, radiation, atmospheric entry, impact, and enough time to establish a new lineage is far harder to prove.Finding evidence of ancient Martian life would be revolutionary. Proving that Earth life descended from it would require something more.Blending geology, astrobiology, planetary science, scientific skepticism, and the philosophy of discovery, Deep Earth follows a team confronting one of science's greatest challenges: how to pursue an extraordinary possibility without claiming more than the evidence can support.Sometimes the deepest discoveries are not found by looking outward-but by looking beneath our feet. Bestandsnummer des Verkäufers 9798240879401
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Deep Earth
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Taschenbuch. Zustand: Neu. Deep Earth | John S Pritchett | Taschenbuch | Englisch | 2026 | John Pritchett | EAN 9798240879401 | Verantwortliche Person für die EU: Libri GmbH, Europaallee 1, 36244 Bad Hersfeld, gpsr[at]libri[dot]de | Anbieter: preigu Print on Demand. Bestandsnummer des Verkäufers 136372273
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