China to land astronauts on the moon by 2030, lunar scientist says
China will definitely put boots on the moon within the next seven years, according to a leading Chinese lunar scientist.
Reference Earth is made up of several layers: the lithosphere, asthenosphere, lower mantle (also known as mesospheric mantle), outer core and inner core.
Reference Pluto was once considered the ninth planet in the solar system, it was demoted in 2006 to dwarf planet status. We explore this icy body in more detail here.