As a student majoring in science, Zachary did research related to the universe.

" Imagination is more important than knowledge. Life is like riding a bicycle. To keep your balance you must keep moving. Two things are infinite the universe and human stupidity, and I am not sure about the universe." [Albert Einstein]

Zachary was interested in the existence of Black Hole.

" What you search for Zachary? What kind of scientific theory you will research?"

" Black Hole," Zachary answered Charlotte shortly.  

" This seems unique Zachary. Is it possible for human beings to enter the black hole?"

" The conventional hypothesis says if there is human enter the black hole, the normal human feet will feel stronger compared to the head's gravity. The different of gravity in the human's feet and head will increase and make the human body torn apart. It is means no one will make it enter the black hole." [Source=Google]

" Sound interesting Zachary. What is meant by the black hole itself?"

" Blackhole is a natural phenomenon that occurs in space. Its mysterious nature makes many curious people want to know and explorer black hole closer." [Source=Google]

" Can I ask you more about the black hole Zachary?"

" Of course Charlotte, I don't mind at all."

" Can you tell me more about the black hole Zachary?"

" Blackhole is, of course, black and are thought not to be perfectly round. Blackhole are also estimated to have a size of four million times larger than the sun. The gravity that occurs in a black hole has accumulated a lot of gas and dust, also will accumulate into a spiral shape with a spinning hole. Black holes themselves cannot be seen directly because of the formation of gas and dust. However, the gravity of a black hole that curves a ray of light around it creates a visual trace in its surroundings called a shadow of a black hole." [Source=Google]

" Is it mean besides the human could die to come inside, they will get blind also Zachary?" 

" No Charlotte, not at all. Although they cannot see the shape of the black hole, people in it will see the shadow of a black hole surrounded by bright rings and crescent moon. Although the black hole is estimated to be very dark, according to astrophysicists from the University Of Arizona, the human outlook will remain bright and clear."  [Source=Google]

" Is it only one way to reach the black hole based on scientist knowledge?"

" The scientist estimated the journey to the black hole is to be a one-way trip. If there is someone who crosses the horizon which is the point where light cannot escape, there will be no way to go back. And the greatest possibility that occurs is death for anyone who enters the black hole. Tidal gravity in a black hole is also said to tear every cell, molecule, and atom in your body into pieces." [Source=Google]

" Wow, that's really crazy with the worse impact of the black hole. What else you know about the black hole Zachary? I am excited to know more about this."

" Hey, is this my girlfriend or my science lecture?" Teasing Zachary to Charlotte.

" Please let me know more about the black hole Zachary, can I?" With spoiled voice, Charlotte requested to Zachary.

" Black holes are divided into three types. The first black hole rename as Stellar Black Hole (small but deadly). This is the type of black hole with the smallest size. This black hole can appear when two celestial bodies that are three times larger than the size of the sun already collide. Although the size is small, this type of black hole is very dense. Just imagine, a mass three times larger than the sun piled up to become the size of the planet Earth. The researches believe that this type of black hole has hundreds of millions in the galaxy where we live." [Source=Google]

" Cool, what is the second one? I am impatiently to know about this."

" The second one rename as Intermediate Black Hole (stuck in the middle). Scientists once thought black hole came in only small and large sizes, but recent research has revealed the possibility for the existence of mid-size, or intermediate black holes. Such a body could form when stars in a cluster collide in a chain reaction. Several of this forming in the same region could eventually fall together in the center of a galaxy and create a supermassive black hole. In 2014, astronomers found what appeared to be an intermediate-mass black hole in the arm of the spiral galaxy." [Source=Google]

" What the astronomer looking there, Zachary?" 

" Astronomers had been looking very hard for this medium-size black holes." [Co-author Tim Roberts] 

" Is it easy to find this black hole? Are they exist?"

" There have been hints that they exist, but intermediate black holes have been acting like a long lost relative that isn't interested in being found." [Source=Google]

" What is the third one of the black holes type and function Zachary?"

" The last type Super Massive Black Hole (the birth of giants). Small black holes populate the universe, but their cousin's supermassive black hole was dominated. Supermassive black holes are millions or even billions of times as massive as the sun but have a radius similar to that Earth's closest star. Such black holes are thought to lie at the center of pretty much every galaxy, including the Milky Way. Supermassive black holes may be the result of hundreds or thousands of tiny black holes that merge together. Large gas clouds could also be responsible, collapsing together and rapidly accrue mass. A third option is the collapse of a stellar cluster. a group of the star is falling together." [Source=Google]

" That's amazing Zachary, I believe you will get cum laud. You could explain the detail of the black hole."

" Same as other I am still learning by doing. I am still far from brilliance and genius  student."

" No, that's not true. You are the best student from the best that our university has Zachary."

" Well said Charlotte, you know exactly how to make someone happy."

" I have a quiz, do you want to answer Zachary?"

" Yes sure, why not. What kind of question do you have for the quiz?"

" How well do you know about nature 's weirdest creations connecting with the black hole?"

" Blackhole are so bizarre, they sound unreal. Yet astronomer has found good evidence they exist."

Zachary and Charlotte continued their Q&A quiz, based on the research of black hole Zachary did it. They spend their night together with laugh and happiness, not feeling tired at all.