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In this week's issue

Your oral microbiome

There are untold legions of viruses, fungi and bacteria living in your mouth. It now seems we can stave off conditions from Alzheimer's disease to cancer by keeping them in a healthy balance. Read more

Cosmic strings

Puzzling ancient galaxies and oddly shaped clusters suggest we have glimpsed cosmic strings travelling at the speed of light – and with them clues to a deeper theory of reality. Read more

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This week's top news stories

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We might officially enter the Anthropocene epoch in 2024

Scientific bodies are due to make an official decision in the coming year about whether to declare a new geochronological unit precipitated by the impact of humans on Earth. Read more

Much of North America may face electricity shortages starting in 2024

Over the next several years, many regions of the US and Canada may struggle to ensure a reliable electricity supply amidst soaring energy demand from the tech industry and electrification of buildings and vehicles. Read more

Mathematicians found a guaranteed way to win the lottery in 2023

A pair of mathematicians studied the UK National Lottery and figured out a combination of 27 tickets that guarantees you will always win, but they tell New Scientist they don't bother to play. Read more

 

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Sustainable Solutions Towards Net Zero

The Trust for Sustainable Living (TSL) aspires to a world where everyone is educated and empowered for a sustainable future. Find out how they are bridging the sustainability learning gap, empowering future generations to achieve the UN Sustainable Development Goals in ITN Business’ programme ‘Sustainable Solutions Towards Net Zero’.

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New Scientist podcast

The best books of the year

In this episode of CultureLab, culture and comment editor Alison Flood appears in her role as professional bookworm to share some of her favorite reads of the year.

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The week's most popular stories

Hannah Ritchie

Klawe Rzeczy

Hannah Ritchie: 'Eco-anxiety on its own is not that useful'

Climate change and biodiversity loss may seem like insurmountable problems, but data scientist Hannah Ritchie is cautiously optimistic we can solve them. Read more

Japan is sending a rover to Mars's moon Phobos in 2024

The Martian Moons eXploration mission is slated to launch for Phobos in September 2024 – once it gets there, it will drop off a rover, pick up some samples and head home. Read more

Monkeys in Thailand took up stone tools when covid-19 stopped tourism

Long-tailed macaques on the island of Koh Ped appear to have learned a new way to forage when the pandemic put a stop to feeding by tourists. Read more

Read New Scientist’s five best long reads of 2023

Our editors have selected five of the most terrific features from the past 12 months. Why are cases of ADHD soaring? Is the entire universe a single quantum object? Should we be rethinking the birth of civilisation? Find answers to these questions and much more. Read more

 
See the world more clearly. Image links to offer.

Our editors have selected the top five features from 2023 and as a festive treat, we've made them free for you to read. Take a look back on biggest stories of the past year from rethinking the birth of civilisation to the explosion in ADHD diagnoses. 

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