Why Is There No Life On The Moon?

Quite a few times, you must have looked at that round grayish celestial body in the night sky and wondered, is life on the moon?

Image Credit: Fithacker  Staying at a distance of about 384,400km from Earth, the moon remains our brightest and closest celestial neighbour. Without any atmosphere for billions of years, the moon has remained particularly lifeless and hasn't shown any sign of producing any. For thousands of years, many people were fascinated by the moon, even to the point of worshipping it as a god. Many wondered if life existed or would exist on this barren world. How 

Image Credit: Starchild

How Did The Moon Form? 
 In recent times, scientists and astronomers have come up with various theories and hypothesis as regards the formation of Earth's moon. The most recognized is the Giant Impact Hypothesis.   Giant Impact Hypothesis Also known as the Big Splash, or the Theia Impact, suggests that Earth's moon was formed out of the remains from a collision between our Earth and a celestial Mars-sized body about 4.5 billion years ago. There is a lot to support this Hypothesis, such as: 
- Earth's spin and the Moon's orbit having comparable orientations. 
 - Moon samples indicating that the Moon's surface was once molten. 
 - The similarity between the composition of Earth's crust and the Moon's lunar rocks. 

 The Moon and Its Atmosphere 
Does the Moon have an atmosphere? The truth is the Moon has no atmosphere. Earth, as a planet, is different from the Moon in composition. At the centre of the Earth lies a dense core of heavy metals, causing our planet to have a magnetic field and a strong gravitational pull, which brings about the ability to retain an atmosphere. An atmosphere is formed due to the release of gases in the core of a planetary body or moon. But in the case of the Moon, its low gravity makes it impossible to hold onto these gases, letting them escape into space.

Image Credit: Wikipedia
 WHAT CAN SURVIVE OR EXIST ON THE MOON? 
 The only life proved to possess the ability to live in outer space and under other temperature, and pressure extremes is the Tardigrade. Having a protein that protects its DNA from radiation damage in space, this microscopic living animal can survive a long period in space, even without oxygen or water. Stay tuned.