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Jul 16, 2023

Alzheimer’s diagnosis revamp embraces rating scale similar to cancer

Posted by in categories: biotech/medical, neuroscience

July 16 (Reuters) — Alzheimer’s disease experts are revamping the way doctors diagnose patients with the progressive brain disorder — the most common type of dementia — by devising a seven-point rating scale based on cognitive and biological changes in the patient.

The proposed guidelines, unveiled by experts on Sunday in a report issued at an Alzheimer’s Association conference in Amsterdam, embrace a numerical staging system assessing disease progression similar to the one used in cancer diagnoses. They also eliminate the use of terms like mild, moderate and severe.

The revamp — replacing guidelines issued in 2018 — was prompted by the increased availability of tests detecting key Alzheimer’s-related proteins such as beta amyloid in the blood and new treatments that require confirmation of disease pathology prior to use.

Jul 16, 2023

WEBB telescope finds 13 billion year-old active black hole

Posted by in category: cosmology

The James Webb Space Telescope has delivered yet another astounding discovery, spying an active supermassive black hole deeper into the universe than has ever been recorded.

The black hole lies within CEERS 1,019 — an extremely old galaxy likely formed 570 million years after the big bang — making it more than 13 billion years old. And scientists were perplexed to find just how small the celestial object’s central black hole measures.

“This black hole clocks in at about 9 million solar masses,” according to a NASA news release. A solar mass is a unit equivalent to the mass of the sun in our home solar system — which is about 333,000 times larger than the Earth.

Jul 16, 2023

OpenAI: Sarah Silverman and others launch lawsuits over alleged copyright violation concerns

Posted by in categories: finance, law, robotics/AI

This segment originally aired on July 10, 2023.
Yahoo Finance Tech Editor Dan Howley reports on lawsuits against OpenAI regarding copyright law violations including Sarah Silverman and others.

About Yahoo Finance:
At Yahoo Finance, you get free stock quotes, up-to-date news, portfolio management resources, international market data, social interaction and mortgage rates that help you manage your financial life.

Continue reading “OpenAI: Sarah Silverman and others launch lawsuits over alleged copyright violation concerns” »

Jul 16, 2023

Primitive plants survive almost two years in outer space

Posted by in category: space

😗 year 2017.


Searing temperatures, radiation and lack of air didn’t kill algae kept outside the International Space Station – so maybe life from space could colonise worlds.

Jul 16, 2023

How Would the United States Fight a Nuclear War?

Posted by in categories: existential risks, nuclear weapons

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Today we’re going explore the unthinkable: How would the United States respond during a Nuclear conflict?

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Jul 16, 2023

Why scientists think life once thrived on the hell planet Venus

Posted by in category: space

Venus is one of the most brutally inhospitable places in our solar system, but many scientists think life may have thrived there at one point. Here’s why.

Jul 16, 2023

Webb telescope spies most distant supermassive black hole ever recorded

Posted by in category: cosmology

The James Webb Space Telescope has delivered yet another astounding discovery, spying an active supermassive black hole deeper into the universe than has ever been recorded.

The black hole lies within CEERS 1,019 — an extremely old galaxy likely formed 570 million years after the big bang — making it more than 13 billion years old. And scientists were perplexed to find just how small the celestial object’s central black hole measures.

“This black hole clocks in at about 9 million solar masses,” according to a NASA news release. A solar mass is a unit equivalent to the mass of the sun in our home solar system — which is about 333,000 times larger than the Earth.

Jul 16, 2023

A world-first spacecraft reentry to Earth is approaching

Posted by in category: satellites

To avert the extremely remote risk that debris poses to life, ESA is targeting the reentry at a vast expanse of ocean far away from land.

If the manoeuvres are successful, ESA expects to complete the journey in late July or early August. However, as a first-ever attempt at an assisted reentry, it’s not guaranteed to work. If the plan has to be aborted, Aeolus’ natural descent will continue.

But if the mission is accomplished, it will set a new standard for satellite reentry and space junk mitigation.

Jul 16, 2023

From Sci-Fi to Reality: Addressing AI Risks — with David Brin

Posted by in categories: cryptocurrencies, existential risks, military, particle physics, robotics/AI

AI had its nuclear bomb threshold. The biggest thing that happens to human technology maybe since the splitting of the atom.

A conversation with Science Fiction author and a NASA consultant David Brin about the existential risks of AI and what approach we can take to address these risks.

Continue reading “From Sci-Fi to Reality: Addressing AI Risks — with David Brin” »

Jul 16, 2023

Pulsar Fusion has begun development of the largest fusion engine in history, which will allow rockets to reach speeds of more than 800,000 kilometres per hour

Posted by in category: space travel

Pulsar Fusion has begun construction of the world’s largest rocket engine, which will be fuelled by fusion. Within four years, the British company intends to create an 8-metre-long combustion chamber.

Here’s What We Know

The fusion engine will be based on a very hot plasma trapped inside an electromagnetic field. Now scientists are working on how to keep the plasma in the electromagnetic field. The announcement was made by James Lambert, CFO of the UK-based company.