4 research outputs found
The Pluto system: Initial results from its exploration by New Horizons
The Pluto system was recently explored by NASA's New Horizons spacecraft,
making closest approach on 14 July 2015. Pluto's surface displays diverse
landforms, terrain ages, albedos, colors, and composition gradients. Evidence
is found for a water-ice crust, geologically young surface units, surface ice
convection, wind streaks, volatile transport, and glacial flow. Pluto's
atmosphere is highly extended, with trace hydrocarbons, a global haze layer,
and a surface pressure near 10 microbars. Pluto's diverse surface geology and
long-term activity raise fundamental questions about how small planets remain
active many billions of years after formation. Pluto's large moon Charon
displays tectonics and evidence for a heterogeneous crustal composition, its
north pole displays puzzling dark terrain. Small satellites Hydra and Nix have
higher albedos than expected.Comment: 8 pages - Initial Science paper from NASA's New Horizons Pluto
Encounte
The Pluto system: Initial results from its exploration by New Horizons
The Pluto system was recently explored by NASA's New Horizons spacecraft, making closest approach on 14 July 2015. Pluto's surface displays diverse landforms, terrain ages, albedos, colors, and composition gradients. Evidence is found for a water-ice crust, geologically young surface units, surface ice convection, wind streaks, volatile transport, and glacial flow. Pluto's atmosphere is highly extended, with trace hydrocarbons, a global haze layer, and a surface pressure near 10 microbars. Pluto's diverse surface geology and long-term activity raise fundamental questions about how small planets remain active many billions of years after formation. Pluto's large moon Charon displays tectonics and evidence for a heterogeneous crustal composition; its north pole displays puzzling dark terrain. Small satellites Hydra and Nix have higher albedos than expected