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Explore the most exciting new ideas and emerging concepts in science, health, technology and the environment with 91av’s exclusive in-depth articles, interviews and long reads.

Physics

Gravitational waves produce a background hum across the whole universe

After decades of searching, astronomers have found a distinctive pattern of light, from spinning stars called pulsars, that suggests huge gravitational waves are creating gentle ripples in space-time across the universe

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Health

Opioids no better than placebo for short-term lower back and neck pain

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Kamal Abu-Shamsieh, PhD - Muslim: https://www.gtu.edu/faculty/kamal-abu-shamsieh Jaime Clark-Soles - Christian Baptist Rabbi Zac Kamenetz - Jewish, founded Shefa: https://www.shefaflow.org Don Lattin - moderator: https://en.m.wikipedia.org/wiki/Don_Lattin A panel discussion at Psychedelic Science 2023, a conference held in Denver, Colorado in June 2023

Mind

Religious leaders given psilocybin say they “felt God”

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Humans

The myth that men hunt while women stay at home is entirely wrong

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The head of Bala Lake, Llyn Tegid, in North Wales, on a fine spring evening.

Environment

Why you should never ever mention rewilding to a Welsh hill farmer

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Colorado, Cortez, Mesa Verde, cliff dwelling, Cliff Palace. (Photo by: Bernard Friel/Education Images/Universal Images Group via Getty Images)

Humans

History reveals vital new lessons in how to make our societies better

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Health

Bird flu viruses have mutations that might help them spread to humans

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Life

Young squash bugs eat adults’ poo to stock up on healthy bacteria

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Environment

Climate change is turning snow to rain and raising risk of floods

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Octopus laqueus having a sleep

Life

Octopuses have a REM-like sleep state where they appear to dream

By looking at electrical signals octopuses produce in their brain while asleep and awake, researchers have gathered some of the best evidence yet that the cephalopods dream

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Health

Wim Hof’s cold therapy for good health lacks robust evidence

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Comment

Justin Cronin on writing a book with a “holy hell” moment in it

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Environment

Soya beans made more meat-like by adding genes for pig proteins

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Life

Plants pollinated by non-native honeybees are less likely to survive

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