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  • Sad Mary on Holy week in Seville, Spain. Street processions are organized in most Spanish towns each evening, from Palm Sunday to Easter Sunday. People carry statues of saints on floats or wooden platforms, and an atmosphere of mourning can seem quite oppressive to onlookers.
    SPA_130_xs.jpg
  • Casa Batlo: a Gaudi designed apartment building in Barcelona, Spain.
    SPA_140_xs.jpg
  • A procession leaving a neighborhood church during holy week in Seville, Spain. Street processions are organized in most Spanish towns each evening, from Palm Sunday to Easter Sunday. People carry statues of saints on floats or wooden platforms, and an atmosphere of mourning can seem quite oppressive to onlookers.
    SPA_127_xs.jpg
  • The façade of the Palau Music Hall, Barcelona, Spain.
    SPA_141_xs.jpg
  • Interior of the library at El Escorial, Spain.
    SPA_105_xs.jpg
  • Interior of the library at El Escorial, Spain.
    SPA_106_xs.jpg
  • This is the "iodine cell," a device developed and perfected by Butler, Marcy, and instrument specialist Steven Vogt of the University of California, Santa Cruz. When light from a star passes through the iodine, molecules in the hot vapor absorb parts of the light at very specific energies. Then, a specially etched slab of glass spreads the starlight into a glorious rainbow spectrum?like a prism held up to the sun, but with exquisitely fine detail. Because the iodine has subtracted bits of the light, a forest of dark black lines covers the spectrum like a long supermarket bar code. "It's like holding the star up to a piece of graph paper," McCarthy says. "The iodine lines never move. So if the star moves, we use the iodine lines as a ruler against which to measure that motion."  Iodine cell.  Lick Observatory on Mt. Hamilton. San Jose, California. 120-inch telescope. Exoplanets & Planet Hunters.
    USA_Lick_060513_032_B_rwx.jpg
  • This is the "iodine cell," a device developed and perfected by Butler, Marcy, and instrument specialist Steven Vogt of the University of California, Santa Cruz. When light from a star passes through the iodine, molecules in the hot vapor absorb parts of the light at very specific energies. Then, a specially etched slab of glass spreads the starlight into a glorious rainbow spectrum?like a prism held up to the sun, but with exquisitely fine detail. Because the iodine has subtracted bits of the light, a forest of dark black lines covers the spectrum like a long supermarket bar code. "It's like holding the star up to a piece of graph paper," McCarthy says. "The iodine lines never move. So if the star moves, we use the iodine lines as a ruler against which to measure that motion."  Iodine cell.  Lick Observatory on Mt. Hamilton. San Jose, California. 120-inch telescope. Exoplanets & Planet Hunters.
    USA_Lick_060513_031_rwx.jpg

Peter Menzel Photography

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