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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.

Palestinians line up to fill water cannisters in Gaza

Health

Why the Gaza water crisis is decades in the making

The UN says approximately 2 million people in Gaza may soon run out of water because Israel has shut off supplies. Here's why the region is so vulnerable to water crises

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Health

Scientists can communicate with people while they are asleep

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Humans

People around Europe have eaten seaweed for thousands of years

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Electrical energy

Technology

Tiny generator uses the motion of molecules to produce electricity

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Mathematics

Coin flips don’t truly have a 50/50 chance of being heads or tails

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Space

Largest quake ever seen on Mars points to surprising seismic activity

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Name: Glacier Requiem Location: Rh?ne Glacier The picture presents a view of the Rhone Glacier, a significant entity in the Swiss Alps. However, the glacier's usual icy-blue appearance is replaced with a stark grey, a consequence of being covered in UV protection sheets. This intervention is a result of efforts to slow the glacier's rapid melting due to climate change. The sheets, an unconventional sight in such a natural landscape, offer a physical representation of the impact of global warming on our planet. A person, a small figure in the grand scheme of the landscape, is seen walking atop the sheets. This human presence serves as a reminder of our role in the glacier's current state and the measures being taken to protect it. The Rhone Glacier is a vital natural resource, playing several critical roles in the local and global ecosystem. As the primary source of the Rhone River, it provides essential freshwater for ecosystems and human activities downstream in Switzerland and France, supporting agriculture and hydroelectric power generation. The glacier's health directly affects these water-dependent systems. Furthermore, it's a significant climate change indicator. Its rapid retreat, losing around 40% of its volume in the past century, visually demonstrates the impacts of global warming. Additionally, the glacier supports unique alpine ecosystems and contributes to biodiversity. Paulo Sousa from Porto, Portugal Winner of Photographer of the Year

Environment

Prize-winning photos highlight the impact of climate change on nature

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Space

Stunning photo of Jupiter’s volcanic moon Io is our best in decades

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Life

Dung beetles’ feeding habits can be used to track endangered lemurs

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Physics

Could nuclear weapons testing resume as global tensions rise?

Only North Korea has detonated nuclear weapons during the 21st century, but recent indications suggest Russia, the US and China are preparing to resume tests

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Environment

Cannabis has a shocking environmental cost – here’s how to fix it

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Mind

It takes just 108 milliseconds for our brains to spot food

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Life

Paris’s bedbug problem is probably no worse than other major cities

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Health

High-dose vitamin D may lower your risk of going to hospital

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