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Desolate volcanic landscape with rugged terrain and a snowy path against a muted sky. — Mud volcano pumping in Azerbaijan Fuad Rahimov

Cave formations glow with amber and teal hues. — Carlsbad Caverns and the natural chamber of secrets Alissa Flatley

Soil trench with tools and scale marker for excavation analysis. — Dystric Regosol on slates near Villanueva de los Castillejos (Huelva, southwestern Spain) Antonio Jordán

Sandy cliffs with layered patterns stand tall under a clear blue sky. — Exceptional record of lake level rise Nicolas Waldmann

Greyzemic Phaeozem on metamorphic rocks in the Canuto del Madroño (P.N. Los Alcornocales, Cádiz, SW Spain) Antonio Jordán

Weathered wooden planks layered with dirt, roots, and green sprouts. — Pages of time Verim Gümüşsoy

Vast wetlands with scattered pools of water under a partly cloudy sky. — Polygonal Tundra Sebastian Zubrzycki

Clear bottle labeled "H44" on desk with computer screen displaying blue triangle in background. — Dissolved organic matter under fluorescence Jeewan Gamage

Lush green field stretches toward distant mountains under a partly cloudy sky. — Oceanic ombrotrophic peatland at the Seno Skyring Fjord, Patagonia, Chile Klaus-Holger Knorr

Dramatic cliffs loom over a serene village under a moody sky. — Astraka Towers Ioannis Daglis

Aerial view of a rugged landscape with a large, irregularly shaped lake surrounded by patches of greenery and rocks. — A ghost lake or a dry snail? Alessandro Ceppi

Winding river bordered by golden foliage under warm sunlight. — Perfectly round island in north Sweden/Lapland Jakob Keck

Two small containers with colorful liquids are displayed in front of a blurred monitor screen. — Black and Green in nature - Blue and Pink in fluorescence Jeewan Gamage

A soil excavation with a ruler and label, surrounded by dry vegetation. — Eutric Lithic Leptosol on slates near San Silvestre de Guzmán (Huelva, southwestern Spain) Antonio Jordán

Wide desert expanse with towering red rock formations under a clear blue sky. — Single Yardang body on the Gobi desert between China and Mongolia Wang Feng

Snail on textured rock surface with small shells and organic debris. — The Nummulite-Whisperer Snail Manuel de Paz Álvarez

An ancient Roman forum with ruins, columns, and a distant volcano under a clear sky. — The Mt. Vesuvius from Pompeji Gunnar Ries

A lone bird flies over a snowy mountain range with rocky foreground. — Whale bones, raised beaches and moraine, Byers Peninsula, Antarctica Marc Oliva

Autumn leaves in vibrant shades of yellow and orange create a canopy overhead. — Before the fall Catherine Moody

Calm river reflects a grassy field and bare trees in a tranquil rural scene. — Turf sitting around lake and gravitational structures Dursun Acar

A stark, leafless tree stands alone in a vibrant autumn landscape against a clear blue sky. — Birch trees in northern Norway Daniel Hölbling

A misty landscape with rocky terrain, a rainbow arc, and a distant snowy horizon under a cloudy sky. — A sunray on the slopes of Miellajokka catchment Laurent Orgogozo

Gold-colored pyrite crystals cluster in a dark rock matrix, with a coin for scale. — Hedenbergite - Ilvaite skarn, Calamita, Island of Elba Samuele Papeschi

Rugged cliff face with layered formations against a clear blue sky. — Sand deposite Libor Elleder

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