The lunar highlands are elevated areas on the moon that were created by material that accumulated in layers from the ejecta of craters. The highlands are riddled with craters and the rocks found there are thought to be between 3.84 and 4.48 billion years old. These craters were formed by the intense bombardment on the moon in the early days of its existence.Know More
The rocks found in the highlands are big and largely anorthosite. This means they are igneous and originate deep in the body of the moon. They form when lava cools over time and are made out of plagioclase feldspar, making the crystals of the rocks are glassy, brittle and nearly transparent. These rocks also have a very large amount of calcium.
The lunar highlands are visible from Earth. They are notable because they are lighter than the maria, which are relatively smooth and flat areas on the lunar surface. The highlands are called terrae, which is Latin for Earth. The word maria is plural for the word for sea. The light color of the highland rocks comes because of their anorthosite qualities. The maria are dark because they are mostly made from basalt, another igneous rock.Learn more about Our Moon
The scientific consensus is that the Earth's moon formed four and half billion years ago. About 100 million years after the formation of the solar system, another small planet is likely to have collided with the Earth, resulting in the formation of the Moon.Full Answer >
No concrete evidence explains why there is a moon. The best hypothesis presented is the Giant Impactor hypothesis: It suggests that around 4.45 billion years ago, while the Earth was still forming, a large object hit the Earth at an angle.Full Answer >
Earth's sole natural satellite, the moon, has a circumference of 6,783.5 miles around its equator. Its surface area is 14,647,439.75 square miles, which is approximately 0.07 times that of the Earth.Full Answer >
Most people know that the moon's gravitational influence has an effect on the tides on Earth, but some scientists also believe that the presence of the moon played an important role in making Earth habitable to begin with. The interplay between the Earth and the moon mirrors events that occurred throughout the early solar system, as a Mars-sized object may have hit the Earth, sending some of the mantle into orbit that soon cooled into the moon. Over time, the relationship between the Earth and the moon may well have assisted the advent of life.Full Answer >