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Serous papillary carcinoma of the endometrium. Ki67 immuno stain.

Host cells with spores (mold) are inside wood under the microscope for education.

Aerial view of the Colca canyon in Arequipa. Peru

Mount Rushmore shot in late September with a tilt shift lens.

Aerial for wonderful landscape of white rock with steep slope and a valley with green grass. White limestone with a vertical cliff on blue, cloudy sky background.

Quantum Gravity 3d rendered image of a comprehensive exploration of Quantum Gravity theories. String theory, loop quantum gravity (LOG), causal dynamical triangulation, twistor theory, gravitational waves, spacetime, gravity waves, quantum mechanics, quantum entanglement concepts.

A panoramic view on the plain on top of a mountain in Hochschwab region in Austrian Alps. The flora overgrowing the slopes is turning golden. Autumn vibes. Sharp and steep mountain chain. Wilderness

$Wet rough asphalt black bitumen road pavement surface abstract grunge texture close-up top view background banner.\nBitumen is a sticky, black, highly viscous liquid or semi-solid form of petroleum. In the U.S., it is commonly referred to as asphalt. It may be found in natural deposits or may be a refined product, and is classed as a pitch. Before the 20th century, the term asphaltum was also used.\nTarmacadam is a road surfacing material made by combining crushed stone, sand, and tar. It is a more durable and dust-free enhancement of simple compacted stone macadam surfaces. The terms \$