Antonio Rodríguez Ferreiro

Antonio Rodríguez Ferreiro

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Antonio Rodríguez Ferreiro
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George A. Van Biesbroeck (1880-1974), astronomer at Yerkes Observatory observing Mars when it approached close to the earth in 1926, and using the 40 inch refracting telescope, the largest of its kind in the world

Astronomer Uses Giant Telescope to View Mars George A. Van Biesbroeck astronomer at Yerkes Observatory observing Mars when it approached close to the earth in and using the 40 inch refracting telescope, the largest of its kind in the world.

This cross-sectional illustration shows the interior of Jupiter's largest moon Ganymede, based on theoretical models, in-situ observations by NASA's Galileo orbiter, and Hubble Space Telescope observations of the moon%u2019s magnetosphere. Image released March 12, 2015.<br />

This cross-sectional illustration shows the interior of Jupiter's largest moon Ganymede, based on theoretical models, in-situ observations by NASA's Galileo orbiter, and Hubble Space Telescope observations of the moon’s magnetosphere.