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Origin of life: lightning strikes may have provided missing ingredient for Earth's first organisms


The origin of life on Earth is one of the most complex puzzles facing scientists. It involves not only identifying the numerous chemical reactions that must take place to create a replicating organism, but also finding realistic sources for the ingredients needed for each of the reactions.
One particular problem that has long faced scientists who study the origin of life is the source of the elusive element, phosphorus. Phosphorus is an important element for basic cell structures and functions. For example, it forms the backbone of the double helix structure of DNA and the related molecule RNA.
Though the element was widespread, almost all phosphorus on the early Earth – around 4 billion years ago – was trapped in minerals that were essentially insoluble and unreactive. This means the phosphorus, while present in principle, was not available to make the compounds needed for life. ....

United States , Benjamin Hess , Life On Earth , ஒன்றுபட்டது மாநிலங்களில் , பெஞ்சமின் ஹெஸ் , வாழ்க்கை ஆன் பூமி ,

13 hot tech companies sold offshore: Did NZ benefit?


13 hot tech companies sold offshore: Did NZ benefit?
13 minutes to read
This month has seen two substantial technology companies sold offshore, with Auckland-based retail software firm Vend going to NYSE-listed Lightspeed for $450 million, and Christchurch geologic 3D modelling outfit Seequent acquired
by Nasdaq-listed Bentley Systems for $1.45b.
Backers were quick to claim that jobs would stay in New Zealand (Vend and Seequent employ some 400 locally between them) and that investors like Movac and Punakaiki Fund (Vend) and Pencarrow (Seequent) would recycle money back into the local tech ecosystem.
A look back at 13 past high-profile tech sales (from a field of many more) reveals that sometimes that happens … and sometimes it doesn t. ....

New York , United States , New Zealand , New Zealand General , United Kingdom , Southern Cross , West Auckland , South Auckland , Selwyn Pellett , Ian Mccrae , Al Monro , Stephen Tindall , Chris Wilson , Pencarrow Seequent , Malcolm Dick , Greg Cross , Jason Oxenham , Peter Maire , Fady Mishriki , Peter Beck , Mark Callander , Jason Oxenham Callplus , Rod Drury , Annette Presley , John Holdsworth , Richard Robinson ,

What happened to Mars's water? New study suggests most was trapped in underground rocks


What happened to Mars s water? New study suggests most was trapped in underground rocks
Posted
TueTuesday 16
updated
WedWednesday 17
MarMarch 2021 at 2:35am
The early Martian environment (right), believed to contain liquid water and a thicker atmosphere, is a world away from the cold, dry environment of Mars today (left).
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Some 4 billion years ago, Earth and Mars were young, warm and wet. If they weren t Solar System twins, they were certainly siblings.
Key points:
Much of Mars s water has disappeared since the planet formed
Planetary scientists suspect most was split into oxygen and hydrogen in the atmosphere, and the hydrogen lost to space ....

Atlantic Ocean , Graziella Caprarelli , Eva Scheller , California Institute Of Technology , University Of Southern Queensland , Solar System , Red Planet , California Institute , Mars Express , Southern Queensland , Jezero Crater , Western Australia , அட்லாண்டிக் கடல் , ஈவா திட்டமிடுபவர் , கலிஃபோர்னியா நிறுவனம் ஆஃப் தொழில்நுட்பம் , பல்கலைக்கழகம் ஆஃப் தெற்கு குயின்ஸ்லாந்து , சூரிய அமைப்பு , சிவப்பு கிரகம் , கலிஃபோர்னியா நிறுவனம் , செவ்வாய் கிரகம் எக்ஸ்பிரஸ் , தெற்கு குயின்ஸ்லாந்து , மேற்கு ஆஸ்திரேலியா , செவ்வாய் கிரகம் ,