The lines on a surface map are called isobars. Isobars are lines of constant pressure which are measured in units called millibars. The numbers indicate the amount of air pressure, in millibars ...

An international team of astronomers have created a global map of the surface of Titan, the ringed planet's largest moon, and it features some surprisingly Earth-like geological features.

Home / New Surface Composition Maps Illuminate Mercury’s History. Posted in Press Release New Surface Composition Maps Illuminate Mercury’s History by SpaceRef March 13, 2015 July 15, 2024.

The approach is rooted in a technique that has been used for approximately 50 years: using shadows to reveal the topography of the moon’s surface, such as changes in elevation within craters or ...

All of the maps agreed that about half of Earth shows “low” human impact, and about half of that—a quarter of the ice-free surface of the planet—could be described as “very low” human ...