FRIDAY REVIEW

Project to protect earth

Some of the moons: (From left) Earth's satellite, Jupiter's tiny Ganymede and Saturn's Mimas.

Some of the moons: (From left) Earth's satellite, Jupiter's tiny Ganymede and Saturn's Mimas.  

T his exciting series, Discovery Project Earth, on Discovery Channel presents innovative and ambitious geo-engineering ideas. In the episode, ‘Space Sunshield,' August 7 at 9 p.m., astronomer and professor Roger Angel leads the project that aims to protect earth from the sun's harmful rays by constructing a large shield. How The Universe Works takes a look at the ‘Moons,' August 12 at 8 p.m., which are home to gigantic geysers and colossal volcanoes.

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