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Science & Nature

Map of every river in the United States.

The Most Expensive Gemstones in the World Infographic - more on the site.

Solar System Exploration

Early Mornings Snow Macro by Shannon Bjogaard

Correlation vs. Causation (A Mathographic)

Margarine linked to divorce? -- One of the golden rules of statistics is that correlation does not equal causation. Just because the movements of two variables track each other closely over time doesn't mean that one causes the other.

Nebraska Supercell | Chris Allington

Rock crystal dice, marked one to six. 1st-2nd Century AD. Roman Imperial Period. via the British Museum.

Petoskey Stone on beach.

NASA's SDO Captures a Monster Prominence by NASA Goddard Photo and Video

Aquamarine from Quy Chau District, Nghe An Province, Vietnam

I want a couple of these!From the Rubbermaid site - Product #1H42, for about $7.50.

Black Opal, Diamond, Gold Ring

What a total lunar eclipse looks like from space.

Saturn's moons Dione and Tethys are caught in a celestial tango (Image: NASA/JPL/Space Science Institute)

▶ The Holographic Universe (Part One) - YouTube