Topography and gravity maps of Mars. Animated rotating Mars globes showing surface elevation (left) and free-air gravity variation (right). The elevation map was created using data from the Mars Global Surveyor spacecraft's Mars Orbiter Laser Altimeter (MOLA) and is colour-coded with lowlands in blue and highlands in red and white. Irregularities in the surface and sub-surface of Mars produce variations in the gravitational field, which affect the velocity and altitude of orbiting spacecraft. The free-air gravity map was created by studying small variations in the orbits of Mars Global Surveyor, Mars Odyssey, and Mars Reconnaissance Orbiter spacecraft. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / NASA |
Modell-Rechte: | nicht erforderlich |
Länge: | 19 Sekunden |
Seitenverhältnis: | 16:9 |
Restrictions: | - |