The Presidential Daily Brief

Intriguing

  1. Pluto Ice

    NASA Finds Blue Skies and Ice on Pluto

    Water is taking up space! Just days after a historic announcement about H2O on Mars, the U.S. space agency has revealed views of an almost Earth-like dwarf planet, with blue skies and frozen water. The “blue” images captured by the New Horizons spacecraft are really gray or red soot-like particles in the atmosphere called tholins, which reflect light in a distorting way, while the water is red. NASA now hopes to determine why exposed pockets of ice survive on certain patches of Pluto’s surface but not on others.

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