A universe in motion seen from the International Space Station during a night pass over Earth (view fullscreen).

A juvenile Victoria's Riflebird performs his elaborate courtship dance to an unimpressed female.

📽: travelandwildlifephotography/ig

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This periodic table uses real element samples encased in clear acrylic.

The energy within ⚡🌎🌀

Hang Sơn Đoòng in Vietnam is the world's largest cave. Its vast chambers are large enough to accommodate entire city blocks, including skyscrapers.

📽: Daniel Kordan

When sunlight passes through a glass prism, it separates into its component colors due to a phenomenon called dispersion; each color's wavelength bends at a distinct angle, forming a spectrum similar to a rainbow.

📽: Drake Anthony

I consider myself scrambled, now

When sunlight passes through a glass prism, it separates into its component colors due to a phenomenon called dispersion; each color's wavelength bends at a distinct angle, forming a spectrum similar to a rainbow.

📽: Drake Anthony

Bioluminescent waves beneath the stars at Crystal Cove, California.

📽: Patrick Coyne

Ravens mate for life and reaffirm their bond by performing synchronized flights.