Pluto’s ice regenerated through convection: Scientists
Q. NASA has detected the icy surface of Pluto’s heart being renewed by a process known as ________ that replaces older ice with fresher material.- Published on 06 Jun 16a. Conduction
b. Condensation
c. Convection
d. None of the above
ANSWER: Convection
In a discovery pointing to exciting geological activity on distant cold planet Pluto, scientists have discovered its icy heart is constantly being renewed by a processes referred to as convention. The prime attraction in the photos of Pluto sent by Nasa's New Horizon spacecraft during its July 2015 flyby was its heart — a large plain informally known as Sputnik Planum .
- The photos show that the surface of Sputnik Planum is covered with icy, churning, convective "cells" 16 to 48km across, and less than one million years old.
