ALT Portrait of Dr. Chunyu Wang smiling at the camera.

ALT Portrait of Radoslav Ivanov smiling, wearing a blue blazer over a blue shirt, set against a textured gray backdrop.

ALT Group of students enjoying a day at Lake George with some individuals posing and smiling for the camera. The background features a calm lake and hills under a cloudy sky.

ALT Two individuals setting a fishing net in Lake George, with mountains visible in the background on a cloudy day.

ALT Three people standing in the shallow waters of Lake George, with mountains visible in the background. Two are smiling at the camera, and one is holding a fishing net. There is a serene landscape surrounding them.

ALT Overcast sky over Lake George with multiple hills in the background.

ALT Satellite view of the Indian Ocean showing internal ocean waves near the coast of Western Australia.

ALT 3D rendered image of cancer cells.

ALT The International Space Station orbits Earth, with large solar panels extended on either side, set against the backdrop of space and Earth's atmosphere.

ALT Smooth water surface with subtle ripples, under a gradient sky fading from blue to orange.