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Bottom view of the LEGEND-200 liquid argon cryostat and the enclosing water tank. The inner walls of the water tank and the outer wall of the cryostat are covered with a wavelength-shifting mirror film. The purpose is to shift and reflect the light produced by muons via the Cherenkov effect in the water. The photons are detected by photosensors. The purpose of this detector component is to detect and identify cosmic ray muons, some of which still reach the experiment despite being located deep underground the Gran Sasso mountain. (fyi: The muon flux is reduced by a factor 106 (one million) by the rock). If not identified, the muon induced events could mimic the searched signal events.

Technology

This gleaming experiment may solve the cosmic mystery of antimatter

The universe is filled with so much more matter than antimatter. The LEGEND experiment, photographed by Enrico Sacchetti, will soon start trying to unravel this conundrum

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Male Leach's sea star (Leiaster leachi) broadcast spawning, releasing streams of sperm from its arms. Kagoshima Prefecture, Kyushu, Japan.

Life

Electrifying image shows starfish spawning

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Planktonium photo series about the unseen world of living microscopic plankton Planktonic trochophore stage of the larva of a polychaete worm Photo Jan van IJken

Life

Mesmerising photos reveal the microscopic beauty of plankton

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Mandatory Credit: Photo by Emilio Morenatti/AP/Shutterstock (12580183a) House is covered by ash from a volcano as it continues to erupt on the Canary island of La Palma, Spain, . An erupting volcano in the Spanish island of La Palma continued to emit vast amounts of magma, gases and ash on Saturday, after days of intense seismic activity and more than five weeks since it erupted Volcano, La Palma, Spain

Environment

Volcanic disaster settles a blanket of ash across La Palma

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Bioluminescent fungi (possibly Omphalotus nidiformis / Pleurotus nidiformis) glowing on tree trunk in rainforest at night, Atherton Tablelands, Queensland, Australia. Highly commended in the Plants and Fungi category of Wildlife Photographer of the Year Competition 2021

Life

The eerie bioluminescence of the ghost fungus in all its glory

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Early expedition photographs reveal long-term environmental change

Video

Early expedition photographs reveal long-term environmental change

Video

Hubble takes amazing photos of the Prawn Nebula and a newborn star

Space

Hubble takes amazing photos of the Prawn Nebula and a newborn star

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FEATURE CROP Summit of Kellas Rock Peak

Humans

Magnificent photos from the sharp end of historical adventure

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Lion?s Mane Jellyfish, Bonne Bay Fjord, Gros Morne National Park, Newfoundland, Canada, 2012.

Life

A beautiful reminder of where Earth's two worlds meet

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Amazing aerial photos show humanity's impacts on Earth

Life

Amazing aerial photos show humanity's impacts on Earth

These dazzling aerial shots of transformed landscapes feature in David Maisel's latest exhibition The Expanded Field. They reveal a stark picture of the effect human activity has on the environment

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Life

Stunning birds shown off to glorious effect in new photography book

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Environment

COP26: Exhibition displays air from dawn of the industrial revolution

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Life

Our web-slinging immune cells caught in action for photo contest

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Life

Cloud of eggs and sperm image wins Wildlife Photographer of the Year

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