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Asteroid Ryugu Reveals Ancient Grains of Stardust Older Than The Solar System

Tiny fragments of rock brought back from an asteroid in near-Earth solar orbit are so old, they predate the Solar System.

A new analysis of samples of asteroid Ryugu has revealed the presence of mineral grains forged in the outflows or explosions of old stars before our own Sun formed.

As identified by previous research, these presolar grains reveal Ryugu is very similar to a class of meteorites known as Ivuna-type carbonaceous (CI) chondrites. However, the presence of some fragile grains indicate that parts of Ryugu may be unchanged since the asteroid formed.

DARPA seeks AI solutions for sourcing critical minerals

DARPA has launched a competition to find AI solutions that can help with sourcing critical minerals.

Critical minerals are raw, non-fuel materials that are vital for manufacturing products that are essential to national security.

DARPA is teaming up with the US Geological Survey (USGS) to explore how machine learning and AI can accelerate critical mineral assessments.

Can we make the future a million years from now go better?

You can buy What We Owe the Future here: https://www.basicbooks.com/titles/william-macaskill/what-we-…541618626/

In his new book about longtermism, What We Owe the Future, the philosopher William MacAskill argues that concern for the long-term future should be a key moral priority of our time. There are three central claims that justify this view. 1. Future people matter. 2. There could be a lot of them. 3. We can make their lives go better. In this video, we focus on the third claim.

We’ve had the opportunity to read What We Owe the Future in advance thanks to the Forethought Foundation. They reached out asking if we could make a video on the occasion of the book launch. We were happy to collaborate, to help spread the ideas of the longtermist philosophy as far as possible smile

Interested in donating to safeguard the long-term future of humanity? You can donate to an expert managed fund at: https://www.givingwhatwecan.org/charities/longtermism-fund.

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🟠 Patreon: https://www.patreon.com/rationalanimations.

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