While a Mars rover can't operate upside down, the Hedgehog robot can function regardless of which side lands up. "Hedgehog is a different kind of robot that would hop and tumble on the surface instead of rolling on wheels. It is shaped like a cube and can operate no matter which side it lands on," said Issa Nesnas, leader of the JPL team.
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
Pluto’s Close-up, Now in Color - 12/10/2015 - Pluto was ready for its close-up during the July 14 New Horizons #PlutoFlyby, and now we have those images in color! The wide variety of cratered, mountainous and glacial terrains seen here gives scientists and the public alike a breathtaking, super-high-resolution color window into the dwarf planet’s geology. Take a look: http://go.nasa.gov/1RHgSa9