Mars has northern and southern hemispheres like Earth, but their defining characteristics are markedly different, a phenomenon known as Martian dichotomy. The Southern Highlands are older ...

The largest part of the brain is the highly-evolved cerebrum. The topmost portion is divided into two hemispheres, each with four lobes, within which are many other subdivisions. The cerebral ...

It's one of two times during the year when Earth's axis isn't tilted towards or away from the sun — sunlight hits both hemispheres equally and both halves of the planet experience 12 hours of ...

For most of the time, auroras are best seen around the magnetic poles of the Northern and Southern hemispheres in Europe, Asia and North America. In the U.S., Alaska is well known to have the best ...

Cerebral hemispheres The cerebrum's outer layer, it is split into two hemispheres and is highly folded. These two hemispheres make up the cerebral cortex. This controls most of our senses ...