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from New Horizons’ highest-resolution imager, shows Pluto and Charon as the spacecraft closes in. In the annotated version, Pluto’s prime meridian (the region of the planet that faces Charon) is shown in yellow and the equator is shown in pink. Credit: NASA/Johns Hopkins Applied Physics Laboratory/Southwest Research Institute
originally posted by: sparky31
this i,m watching cloesly,nasa them selfs have said the dark patches they have no clue.
lets just hope that what ever they find they don,t try alter what ever it is.
this should be very interesting.
he Hubble images, released in February, revealed Pluto as a molasses-colored world on the fringe of the solar system with surprising variations in brightness across its surface. Based on closer analysis, scientists say the darker spots may represent parts of the ground covered in a tar of primordial organic compounds.
"We know there's methane on Pluto," said dwarf planet expert Mike Brown of Caltech. "Here's what we think happens: Sunlight hits the methane and breaks it apart into its chemical components ??hydrocarbons. Over millions of years this process makes a dark reddish-brown oil or tar-like substance that sticks to the ground. These darker areas spread larger as they absorb more sunlight and cause additional frost to sublimate."
The bright spots, in turn, are thought to be related to areas covered in carbon monoxide frost.
originally posted by: 0bserver1
Something strikes me that it looks like if charon hasn't a reflecting surface. Is it because it's in the shadow of Pluto or the distance from the new horizon?
originally posted by: MrCrow
How close will the probe get to Pluto? I couldn't find it on factsheet: www.nasa.gov...
At closest approach, the spacecraft comes about 7,750 miles (12,500 kilometers) from Pluto and about 17,900 miles (28,800 kilometers) from Charon.
originally posted by: MrCrow
How close will the probe get to Pluto? I couldn't find it on factsheet: www.nasa.gov...
Charon may not have these icy materials.