Lang, lang ist's her ......
3.5 Billion-Year-Old Fossils Challenge Ideas About Earth’s Start
<
https://www.wired.com/story/35-billion-year-old-fossils-challenge-ideas-about-earths-start/>
Zitat:
»In the arid, sun-soaked northwest corner of Australia, along the Tropic
of Capricorn, the oldest face of Earth is exposed to the sky. Drive
through the northern outback for a while, south of Port Hedlund on the
coast, and you will come upon hills softened by time. They are part of a
region called the Pilbara Craton, which formed about 3.5 billion years
ago, when Earth was in its youth.«
»In the arid, sun-soaked northwest corner of Australia, along the Tropic
of Capricorn, the oldest face of Earth is exposed to the sky. Drive
through the northern outback for a while, south of Port Hedlund on the
coast, and you will come upon hills softened by time. They are part of a
region called the Pilbara Craton, which formed about 3.5 billion years
ago, when Earth was in its youth.«
»In the past year, separate teams of researchers have dug up, pulverized
and laser-blasted pieces of rock that may contain life dating to 3.7,
3.95 and maybe even 4.28 billion years ago. All of these microfossils—or
the chemical evidence associated with them—are hotly debated.«
»The oldest rocks in the record suggest parts of the planet’s crust had
cooled and solidified by 4.4 billion years ago. Oxygen in those ancient
rocks suggest the planet had water as far back as 4.3 billion years ago.«
Hadean age for a post-magma-ocean zircon confirmed by atom-probe tomography
<
https://www.nature.com/articles/ngeo2075>
planetary science
What Made the Moon? New Ideas Try to Rescue a Troubled Theory
<
https://www.quantamagazine.org/what-made-the-moon-new-ideas-try-to-rescue-a-troubled-theory-20170802/>
PS: Ausnahmsweise x-post, da querdurch interessant!
Ein fup kann jeder setzten wie er/sie will ;-)
--
Fritz