The moon is more than just a grey monotonous world. Thanks to modern observation techniques because of which we not only view the moon’s surface, but also are able to have insights into how moon and other rocky planets in our solar system have evolved over time.
The interiors of some craters in the polar region of moon have been hidden from sunlight for as much as 2 billion years.
Some of the patches that are visible to the naked eye on the moon are as deep as the grand canyon while some are twice or even deeper.
Its incredible how we think about the moon and how it looks. Do you know that moon never looked like this even though it appears that moon has been the same all along?
Thanks to NASA’s Lunar Reconnaissance Orbiter for giving a better look at moon and for understanding its history.
It is understood that moon started as a giant ball of magma formed from the remains of an impact on earth estimated at four and a half billion years ago.
Scientists say that the hot material collected into a sphere and the magma began to cool and formed a crust on the surface of it.
About 4.3 billion years ago, shattered the moon’s South Pole forming the South Pole Aitken basin and sending debris farther from the opposite side of the moon.
This period marked by the impact caused major changes to the moon’s surface. Many such collisions happened on the moon forming large basins. The dark coloured patches of the moon are the evidences of those collisions. These patches are known as Mario.
Studies reveal that due to certain impacts, the basin created is several kilometers in depth and around 2500 km in diameter on the moon.
They began as normal craters but soon started changing because the magna inside the surface hadn’t yet cooled down.
The iron content of the base rock makes them reflect less light and thus the surrounding highlands of the moon appear darker.
The volcanic activity on Moon ended about 1 billion years ago. The moon keeps having multiple impacts from time to time.
As of today, the rate of impact of different craters on moon has slowed down drastically and thus the moon appears as it is to us.