Scientists with NASA’s
New Horizons mission have assembled this highest-resolution color view
of one of two potential cryovolcanoes spotted on the surface of Pluto by
the New Horizons spacecraft in July 2015.(Photo: NASA/JHUAPL/SwRI)
Our concept of the planet Pluto is no longer merely fantastical.
NASA’s New Horizon probe passed by the dwarf planet nearly a year ago
on July 14, 2015, capturing high-resolution photos of the planet along
the way. The photos were then recently compiled into this mosaic strip.
The strip contains all the high-resolution images captured earlier and
extends across the hemisphere of the planet that faced the New Horizon
spacecraft.
For a even better view of the breathtaking landscapes encompassed in
the tiny strip, refer below to a video released by NASA. The short movie
pans down the strip from top to bottom, giving us a brief tour of the
planet’s hummocky cratered uplands, rocky terrains, and cellular
nitrogen ice plains, among other features.
Especially of note is the cell walls in the nitrogen ice plains. The
walls are created through a process called convection. Think of how hot
magma rises and replaces colder denser, material at the earth’s surface,
except in Pluto’s case, it is hotter ice in reservoirs warmed by
Pluto’s internal heat rising and replacing colder ice.
“For the first time, we can really determine what these strange welts
of the icy surface of Pluto really are,” said William B. McKinnon,
professor of earth and planetary sciences in Arts & Sciences at
Washington University in St. Louis, who led the study. “We found
evidence that even on a distant cold planet billions of miles from
Earth, there is sufficient energy for vigorous geological activity, as
long as you have something as soft and pliable as nitrogen ice.”
Needless to say, the new images are a big step toward better
understanding the icy world, and researchers are thrilled with
the historic achievement.
“This new image product is just magnetic,” said Alan Stern, New
Horizons principal investigator from Southwest Research Institute in
Boulder, Colo. “It makes me want to go back on another mission to Pluto
and get high-resolution images like these across the entire surface.”
With the most distant planet Pluto reached, the New Horizons craft
has completed its initial exploration of the solar system. Next, New
Horizons is expected to conduct another close flyby of Kuiper Belt
object 2014 MU69, expected Jan. 1, 2019.
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