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Life May Have Started Twice, And Scientists Say The Clues Are Everywhere
For more than a century, scientists have worked from a remarkably simple idea about the history of life on Earth: everything alive today ultimately traces back to one ancient beginning. Bacteria, trees, insects and humans may look impossibly different, but beneath all that diversity sits the same genetic code. It is the biological thread connecting…
Rare Meteorite That Hit New Jersey Home Reveals Ancient Ingredients for Life
A loud boom shook neighborhoods across the New York metropolitan area on a summer afternoon, sending people outside in search of the source. Many spotted a brilliant fireball racing across the daytime sky. Few imagined that the spectacle would end with a piece of space rock crashing through the roof of a quiet home in…
All Five DNA Building Blocks Found on Asteroid Ryugu for the First Time
Something extraordinary arrived on Earth in December 2020, sealed inside a capsule that had traveled millions of kilometers through space. JAXA’s Hayabusa2 spacecraft delivered 5.4 grams of dust collected from the surface of asteroid Ryugu, a carbon-rich body orbiting between Earth and Mars. Scientists had already found organic molecules in earlier analyses of that dust,…
Scientists Say New Evidence Suggests ‘We May Have Been Wrong About the Origin of Life’
For centuries, scientists and the public have been captivated by the mystery of how life began. Humanity has sought answers to this profound mystery, from ancient myths to modern laboratories. Now, a groundbreaking study from the University of Arizona challenges long-standing beliefs about the genetic code and the origins of life, offering fresh insights that…