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Former Navy Seal
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International Poker Champion
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Amaryllis Fox
Former CIA Clandestine Operative
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Chris Hadfield
Retired Canadian Astronaut & Author
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Uranus' Strange Magnetosphere Switches Open and Closed, Letting in Solar Wind

New research on Uranus' magnetosphere could help scientists learn about distant systems, and refine the ways they search for alien life.

Uranus has a “switch-like” magnetosphere that opens and closes once every rotation of the planet, exposing it to deadly solar winds, according to researchers at the Georgia Institute of Technology in the US.


The findings could help scientists understand the mechanics of distant systems, and refine the ways they search for alien life.

First, what exactly is a magnetosphere?

A magnetosphere is the region of space around an object in which charged particles are controlled by that object’s magnetic field. Earth’s magnetosphere shields us from the solar wind – the continual stream of charged particles that flows from the upper atmosphere of the sun – by deflecting the radiation. Without a magnetosphere, radiation would destroy Earth's atmosphere and make it impossible for life and liquid water to exist.

Here's an artists' rendering of Earth's magnetosphere:

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DMT drug study investigates the ‘entities’ people meet while tripping

Why do so many people encounter beings after smoking large doses of DMT?

Pixabay
Mind & Brain
  • DMT is arguably the most powerful psychedelic drug on the planet, capable of producing intense hallucinations.
  • Researchers recently surveyed more than 2,000 DMT users about their encounters with 'entities' while tripping, finding that respondents often considered these strange encounters to be positive and meaningful.
  • The majority of respondents believed the beings they encountered were not hallucinations.
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Self-driving cars to race for $1.5 million at Indianapolis Motor Speedway ​

So far, 30 student teams have entered the Indy Autonomous Challenge, scheduled for October 2021.

Illustration of cockpit of a self-driving car

Indy Autonomous Challenge
Technology & Innovation
  • The Indy Autonomous Challenge will task student teams with developing self-driving software for race cars.
  • The competition requires cars to complete 20 laps within 25 minutes, meaning cars would need to average about 110 mph.
  • The organizers say they hope to advance the field of driverless cars and "inspire the next generation of STEM talent."
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The dangers of the chemical imbalance theory of depression

A new Harvard study finds that the language you use affects patient outcome.

Image: solarseven / Shutterstock
Mind & Brain
  • A study at Harvard's McLean Hospital claims that using the language of chemical imbalances worsens patient outcomes.
  • Though psychiatry has largely abandoned DSM categories, professor Joseph E Davis writes that the field continues to strive for a "brain-based diagnostic system."
  • Chemical explanations of mental health appear to benefit pharmaceutical companies far more than patients.
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Navy SEALs: How to build a warrior mindset

SEAL training is the ultimate test of both mental and physical strength.

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