John Baez on the science of red sprites: “Sprites are quite different from lightning.

John Baez on the science of red sprites: “Sprites are quite different from lightning.

Some of the science—and the poetry—of LIGO’s gravitational wave announcement.

Some of the science—and the poetry—of LIGO’s gravitational wave announcement.

The center of a black hole is not so much a place as  a moment in time. It is literally as inescapable as tomorrow.

The center of a black hole is not so much a place as  a moment in time. It is literally as inescapable as tomorrow.

So in my mind the axis is caused both by imperfect experiments and analysis and by the human need to find patterns…

So in my mind the axis is caused both by imperfect experiments and analysis and by the human need to find patterns…

Structural Coloration: From Blue Jays to Butterflies, find out how colors can be based on nanostructures instead of…

Structural Coloration: From Blue Jays to Butterflies, find out how colors can be based on nanostructures instead of…