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Satellite image of a desert village whose dark patchwork of fields forms the crown of a tree, with a dry river channel as its trunk crossing a ridge and fanning out below like roots. — Satellite image of the tree-like village Mohammad Goudarzi

Black-and-white single colour band version of a rainbow arc across a grey sky, showing a bright main band with two or three faint, narrower parallel bands along its inner edge. — Supernumerary rainbows Konstantinos Kourtidis

Close-up of dark grey limestone packed with fan-shaped fossil shells, their fine radiating ribs catching the light as they emerge at different angles from the rock surface. — Coming to light, from the darkness of the past Giuliana Rossi

Confocal micrograph of grey soil fragments on a grey background, with bright magenta colour concentrated along the edges of the largest fragment, and a scale bar reading 100 um. — Nibbling round the edges Maria Hernandez-Soriano

Grey layered pyroclastic deposit in a cutting, with a pale lens-shaped layer curving like a smile between bands of gravelly ash. — Smile Abdolreza Jafarian

Three people with backpacks and rain covers standing on a snowy edge, looking out over a sea crowded with broken ice floes under thick grey fog. — Field work in the High Arctic Dieter Franke

Aerial view of pale grey clay hills with steep conical peaks and fine gullies running down their flanks, set against a hillside of dark green shrubs under a blue sky. — "Komolithoi" hills, Potamida, Kissamos, Chania, Crete, Greece Dimitrios Alexakis

Pink globe-shaped flower head on a thin stalk in front of a grey cracked limestone rock, with two smaller round flower heads in the background. — Rocks and flowers Judit Petrovszki

Orange floating frame with numbered posts and ropes hanging into a calm grey sea, with a small flock of brown pelicans flying low over the water beside it. — The bridge between science and nature Carsten Spisla

Vast white salt flat covered in polygonal plates outlined by raised salt ridges, stretching to a low dark island on the horizon under a pale blue sky. — Salar de Uyuni Rolf Sander

Video of a shallow grey pool of muddy water bubbling among pale rocks and ground stained yellow, green and orange. — Bubbling Cauldrons: volcanic fumaroles in the Azores Aude Lavayssière

Close-up of grey sandy soil covered in many small round craters with raised rims, like a pockmarked surface, with a few pine needles lying on it. — Dripping dime size drops Antonio Jordán

Video of an aerial view looking down onto the rough grey top of a volcanic lava dome strewn with blocks, with white gas puffing from its edges. — Aerial footage of an explosion at Santiaguito volcano, Guatemala Felix von Aulock

Black-and-white view of a few buildings, a lattice radio mast, a tall aerial and a dish antenna on a snowy plain below a snow-covered mountain, with three people walking towards them. — Isfjord Radio, Svalbard 2023 Gryphen Goss

Low view of cracked grey saline silt broken into polygonal plates, with clumps of green and reddish succulent glasswort plants at the back. — Suelo salino de marisma. José Pedro

Dark mist and low cloud sweeping over a forested hillside, with a row of tall thin spruce trees silhouetted along the ridge. — A storm Iva Hunova

Unpaved dirt road whose edge and verge are covered with a layer of fallen dry leaves, with grass alongside. — Natural soil erosion protection in an unpaved road Paulo Pereira

Bright lightning bolt striking the tip of an aircraft wing in dense grey cloud, seen from a cabin window, with a timestamp overlay reading 07:35:55.760. — Aircraft-triggered lightning Pavlo Kochkin

Hillside of bare trees and shrubs coated white with frost and snow, under heavy grey clouds that sunlight breaks through, with darker valleys and ridges behind. — Winter sunburst Katalin Takács

Aerial view of a vast open-pit mine: a deep oval crater with stepped terraces cut into its walls, surrounded by spoil heaps, haul roads, a fan-shaped dump and industrial buildings in a brown desert. — Chuquicamata copper mine, Chile Martyn Unsworth

Waterfront in a stony soil after rainfall simulation Antonio Jordán

Grey rocky surface packed with rounded, roughly circular nodules like cobbles, with a black and white scale bar laid across. Caption reads Crater lake oncolitic pavement. — Oncolites Hugo Beraldi

Patch of bright green moss on bare brown soil, among small weeds, pebbles, dry twigs and a few fallen leaves. — Moss on soil Konstantinos Kourtidis

Close-up of rows of matt black pyramid-shaped spikes of varying length, casting sharp shadows on a grey surface. — Geometry of a blackbody Friedhelm Olschewski

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