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Late Veneer Theory

All articles tagged with #late veneer theory

science2 years ago•2 min saved

The Origins of Life on Earth: Debunking Meteorite Theories

New research challenges the popular "late veneer" theory, which suggests that essential elements for life arrived on Earth after its core formation through asteroid impacts. The study indicates that volatile elements, including sulfur and nitrogen, may have existed on Earth from its early formation. Using computational techniques, researchers analyzed isotope signatures of chalcogens and found that many volatiles evaporated during Earth's formation, but a significant amount remains today. This research sheds light on Earth's geologic history and has implications for understanding the habitability of other terrestrial planets. Further studies will explore the behavior of other life-critical volatiles and their isotopes under extreme conditions, as well as the potential habitability of exoplanets.

via Space.com|

#earth #isotopes #late-veneer-theory

science2 years ago•1 min saved

Earth's Potential as the Origin of Life Challenges Meteorite Theory

New research challenges the prevailing theory that the building blocks of life on Earth came from extraterrestrial sources like asteroids or comets. Instead, scientists propose that the origin of life might have been on Earth all along, with the necessary elements called volatiles existing here from the planet's earliest formation. This theory contradicts the late veneer theory, which suggests that volatile-rich objects brought these elements to Earth after its core had formed. The study also aligns with research on the origin of water on Earth, providing further insights into the mystery of life's beginnings.

via BGR|

#earth #late-veneer-theory #origin-of-life

science2 years ago•2 min saved

"Revisiting Origins: Earth's Potential for Life's Essential Elements Discovered Within"

New research challenges the popular "late veneer" theory, suggesting that Earth may have had all the volatile elements necessary for life from the beginning of its formation, rather than acquiring them through asteroid impacts. Using computational techniques and isotope analysis, scientists found that many volatiles, including chalcogens like sulfur and selenium, were present during Earth's early stages and have persisted to this day. This research sheds light on Earth's geologic history and could provide insights into the habitability of other terrestrial planets. Further studies are needed to investigate the behavior of other life-critical volatiles and their potential presence on exoplanets.

via The Conversation|

#chalcogens #earth #late-veneer-theory