Black Holes
Space has been one of the most fascinating mysteries to man ever since he could look up at the stars. From ancient Greece when man thought the stars were gems in a solid black sky, to the renaissance when the notion of a heliocentric solar system was born, even to now, where as far as technology has taken the understanding of the universe, science had barely begun to scratch at its surface. The universe holds questions yet to be answered, many concepts that still must be explored; black holes, dark matter, and most importantly, the big bang.
As interesting as everything about the universe is, where did it all come from? This question has fueled one of the longest ongoing debates throughout all mankind, as this question goes beyond the realm of science and continues its way toward religion. The closest theory science has to an answer for this question is the highly supported “Big Bang” theory.
The Big Bang Theory is a theory that the universe was once a super-condensed and super-radiated form of what it is now, expanding from the size of the smallest existent particle to the size of grape fruit in the smallest moment, and continually expanding at an exponential rate.
The Big Bang is the birth place of every particle of matter, of every joule of energy, of everything in the galaxy. Before exploring the Big Bang in further depth, it is important to step back and understand how science came to this unanimous acceptance of this theory, which means taking a look at the first events that pointed science in the right direction.
One of the most important astronomic innovations was the creation of the WMAP
(Wilkinson microwave anisotropy probe) Satellite. This satellite was approved by NASA back in
1997, 4 years later the WMAP Satellite was sent into orbit. The satellite is capable of detecting the most faint microwave radiation. The WMAP measures 3.8 meters by 5 meters, and weighs
840 kilograms. The WMAP consists of two back to back telescopes that focus microwave radiation and radio it back to earth. What is most important about the WMAP, however, is the discovery that it provided astronomers with.
With the WMAP, astronomers were able to take a look at what the universe looked like when it was a mere 380,000 years old by viewing remnants of microwave radiation through the
WMAP. In this image of the universe, its particles are very crammed and the temperatures are extremely hot, suggesting that the universe has been continuously expanding and cooling. The reason the WMAP satellite can give us these incredible pictures is because the night sky functions similar to a time machine. Because light is limited to a finite speed, it takes a finite amount of time forthe light from starts and other distant sources of energy output to reach us.
Light from a star can take up to ten years or more to reach us, that’s ten or more light years
(approximately 6 trillion miles per year). That being said, the stars we see at night are seen as they once were, not as they are. All we ever see of stars are their old photographs because of how long their light can take to reach us. With this principle the WMAP was able to view an old photograph of the universe via microwaves, and with this new information, astronomers were able to calculate the age of the universe to be about 13.7 billion years old.
Another one of the most important discoveries was made by Edwin Hubble. Hubble proved that the universe was much larger than thought in his time. A big problem during his time was detecting how far the “farthest” stars were. This was difficult because a close and dim star could look just the same as a star that is far and bright. Hubble had a solution. Hubble a star in the Andromeda galaxy to use as a “reference star” to calculate distance among the other starts.
Hubble new that a variable star (called a Cepheid) regularly dimmed and brightened with time.
The
Don't let the name fool you: a black hole is anything but empty space. Rather, it is a great amount of matter packed into a very small area - think of a star ten times more massive than the Sun squeezed into a sphere approximately the diameter of New York City. The result is a gravitational field so strong that nothing, not even light, can escape. In recent years, NASA instruments have painted a new picture of these strange objects that are, to many, the most fascinating objects in space. Although…
Gina Bruno Astronomy Paper Black holes “Imagine a thing made of nothing but space and time. Imagine a place that is a one-way exit from our universe. Imagine an object that can stop time and tear a star apart, atom-by-atom.” This is not science fiction, its a description a black hole. There are many strange and wonderful phenomenons always being discovered in our Universe. Black holes are so interesting because there such a mystery. The first notion of a black hole came from the genius brain…
Karen Liu The Black Hole and the Golden Key of our Universe Many people have often heard of the word Black Hole in astronomy. Given this chance to research about this mysterious object in the Universe, I decided to share my knowledge with you. The Universe is a fascinating world of wonders, many times more complex than that of on Earth, and that is the reason it draws me toward it. Many questions have bombarded me throughout this research, and many have been answered. Through the research…
Black Holes: How are they formed? Black holes have been studied and researched for quite a long time. It has been proven that black holes contain such incredibly dense and compact matter, that its gravitational force is strong enough to prevent anything and everything, including light, from escaping. Although they do not emit any detectable light, scientists are able to measure the X-rays , visible light, and radio waves emitted by the material objects orbiting around it. By doing this, you can…
SUN – lies within the galactic disk 30,000 ly from the center of the galaxy Orbits around the center of the galaxy at a speed of ~790,000 km/hr The Sun takes ~ 200 million years to complete one orbit around the galaxy! We have a Black Hole at the center of our galaxy!! Called Sagittarius A star (Sag A*) http://physics.uwyo.edu/~mpierce/A2310/2006orbits_animfull.gif Galaxies, Galaxies Everywhere! How would you classify galaxies? A) Color B) Size C) Shape D)Other…
Real Images of Actual Black Holes Extraordinary Evidence for an Incredible Idea Presented by: Name, Affiliation Location and Date here http://www.universeforum.org/einstein/ Real Images of Actual Black Holes A Brief Summary of Black Holes Stellarmass black holes The most massive stars end their lives in titanic explosions, leaving nothing behind but their ultra dense collapsed cores. Midmass black holes A new class of recentlydiscovered black holes have masses on the order of hundreds or…
Dark matter guides growth of supermassive black holes Summary This article is about a new study between elliptical galaxies dark matter and their black holes. Previous studies revealed a relationship between a black hole’s mass and the mass of all the stars in an elliptical galaxy. We know of dark matter because of its gravitational attraction by holding galaxies and galaxy clusters. The dark matter halo is in every galaxy and is as dense as a trillion suns. There was a study of over 3,000 elliptical…
quantum black holes) can be entangled to create a channel of information that can teleport qubits (quantum information bits) back and forth between the quantum objects through the channel. They would form pairs that can only can teleport information about their physical properties of the quantum objects including the quantum objects’: spin, polarization, momentum, position, and time dilation. Julian Kostonov, a theoretical physicist at CERN then postulated that if two quantum black holes became…
that we will discover life in another planet and about 5 years we will be able to locate and discover earth like planets that revolve around sun like stars. Andrea Ghez: The hunt for a super massive black hole Andrea Ghez’s passion is the research to see if there truly is a super massive black hole at the center of galaxies; more…
of Time, Hawking touches upon seven topics in-depth while easily explaining them in a simple manner: our picture of the universe, space and time, the expanding universe, the uncertainty principle, elementary particles and the forces of nature, black holes, and the origin and fate of the universe.…