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1,400 miles on Nothing but Hydrogen

Hydrogen Hyundais Cross Europe, Longest Hydrogen Journey Ever (via Gas 2.0) As an alternative to oil, hydrogen seems so promising, and yet so impossible. The only emissions from hydrogen fuel cells is water. Alas, the expense and lack of infrastructure mean they’re...

Universe in a Sphere

Universe in a Sphere (via redOrbit) Universe in a Sphere Our entire observable universe is inside this sphere, with a radius 13.3 billion light years, with us at the center. Space continues outside the sphere, but an opaque glowing wall of hydrogen plasma hides it...