What do the first 10 million years of the solar system look like? These diamonds give a clue.
A little peek into our past reveals tantalizing details.
In 2008, an asteroid exploded 37km above ground across the Nubian desert of northern Sudan. The fragments contained both rock and rough diamonds.
What scientists have figured out since, after gathering about 50 pieces of what was left, is that it came from the first 10 million years of our solar system — from a planet around the size of Mars or Mercury that ultimately was destroyed.
Known as the Almahata Sitta meteorites, scientists used transmission electron microscopy and electron energy-loss spectroscopy to ascertain that the materials, including the diamonds, can only be formed above pressures of about 20 gigapascals (GPa). This only happens within a planetary body.
What they theorize is that the protoplanet these pieces ultimately came from likely collided with others in that first 10 million years, causing Almahata Sitta — and others — to float about the solar system until they, too, collided with another planetary body; in this case, Earth. Such items account for less than 1% of objects that collide with our planet.
From the study, published in Nature Communications:
“in the first million years of the solar system. Mars-sized bodies (such as the giant impactor that formed the Moon) were common, and either accreted to form larger planets, or collided with the Sun or were ejected from the solar system. This study provides convincing evidence that the ureilite parent body was one such large ‘lost’ planet before it was destroyed by collisions.”
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It's up to us humans to re-humanize our world. An economy that prioritizes growth and profits over humanity has led to digital platforms that "strip the topsoil" of human behavior, whole industries, and the planet, giving less and less back. And only we can save us.
- It's an all-hands-on-deck moment in the arc of civilization.
- Everyone has a choice: Do you want to try to earn enough money to insulate yourself from the world you're creating— or do you want to make the world a place you don't have to insulate yourself from?
A growing body of research shows promising signs that the keto diet might be able to improve mental health.
- The keto diet is known to be an effective tool for weight loss, however its effects on mental health remain largely unclear.
- Recent studies suggests that the keto diet might be an effective tool for treating depression, and clearing up so-called "brain fog," though scientists caution more research is necessary before it can be recommended as a treatment.
- Any experiments with the keto diet are best done in conjunction with a doctor, considering some people face problems when transitioning to the low-carb diet.
Upload your mind? Here's a reality check on the Singularity.
- Though computer engineers claim to know what human consciousness is, many neuroscientists say that we're nowhere close to understanding what it is, or its source.
- Scientists are currently trying to upload human minds to silicon chips, or re-create consciousness with algorithms, but this may be hubristic because we still know so little about what it means to be human.
- Is transhumanism a journey forward or an escape from reality?
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