Abstract
This paper begins by providing a brief biographical overview of Isaac Newton, from his birth in England in 1642 to his groundbreaking scientific theories and discoveries. The paper covers Newton's scientific achievements, starting with the fact that he established a unified theory of approach to modern science. It discusses his discoveries relating to the white light, the telescope and to the field of optics in general. The paper also covers Newton's mathematical achievements in the form of calculus and his most famous discovery of all - gravity.

From the Paper
"Newton's discoveries in optics were offset by his even more groundbreaking discoveries in pure mathematics and the science of mechanics. One of the most important modern mathematical tools "The Integral Calculus" was the brainchild of Newton. It need not be mentioned that without this mathematical tool the progress that the scientific community achieved in many disciplines would have been significantly delayed. However Newton's discoveries in the field of mechanics outweigh all his other accomplishments. Though Galileo had already discovered the first law of motion his theory was based on the movement of objects without any external influence or attraction between them. Newton's three laws of motion explained the hitherto inexplicable behavior of all physical bodies in motion. Still more astounding was Newton's discovery of gravity. All these four laws put together explained the mechanical motion of all earthly and heavenly bodies. Newton not only proposed these laws but also ratified them by using the integral calculus."

Tags:rainbow, astronomical, Galileo, motion, Mathematical, Principles, of, Natural, Philosophy

Abstract
This paper identifies the aspects of a planet's atmosphere that influence its temperature. It also explains how these factors are linked to global climate change.

Abstract
This paper examines the nature of the sun, the nature of light and how they are connected. The author points out that the connection lies in nuclear fusion, the process in the core of the sun by which incredible amounts of energy are produced during the fusion of hydrogen into helium. The paper relates that this energy exists across the EM spectrum, some of which is visible light.

From the Paper
"The process by which the sun produces visible light is truly one of the most awe-inspiring processes in the universe and is directly responsible for all life on this planet. Light itself is a form of electromagnetic radiation that the sun produces through the principle of incandescence - essentially because it's very hot (Introduction to light, 2003). But of course, the production of light is a much more complex process than just because it heats up. The process by which the sun produces light is connected to nuclear fusion and Einstein's famous equation, E=mc2."

Tags:sun, light, fusion

Abstract
In this article, the writer notes that about once a day, somewhere in the universe a burst of gamma rays appears as if out of nowhere. It lasts a very short time, no more than a few seconds, and then disappears. The writer points out that during the event, the level of radiation from the gamma-ray bursts is so high that it overwhelms any other gamma rays coming from other cosmic sources. It has also been observed that most gamma-ray bursts have an afterglow in the x-ray, and sometimes even optical, wavelengths ranges. The writer maintains that the research into gamma-ray bursts will continue until their nature is finally understood. The writer concludes that while this research goes on, the accumulated information and the intermediate hypotheses are already helping astronomers and cosmologists to better understand the universe, particularly the time when it was just beginning to form.

Outline:
Definition and Description
Research Goals
History
Analysis
Future Research

From the Paper
"Despite the inconsistent nature of these bursts, some patterns have been identified. One prominent distinction is between long and short bursts, those over 2 seconds and those less than that. Analysis of almost 2,000 gamma-ray bursts recorded by the BATSE device on the Compton Gamma-Ray Observatory between 1991 and 2000 showed that each falls into one of two groups: the short bursts have closely-spaced high-energy photons; the long bursts' photons appear to have lower energy and are more widely spaced.
"Another pattern that was discovered is related to the degrees of brightening and fading that the bursts exhibit over time in various channels of the measured energy spectra over the life of the burst. This analysis showed that different bursts release their gamma rays at different rates in different energy spectra When plotted, these variations manifested themselves as 5 distinct patterns: flat, crescent (or double-crescent), loop, lobe and island."

Tags:telescope, radiation, universe, black, holes

Abstract
This paper discusses how black holes are created. It studies the ideas of physicist John Mitchell, his discoveries and how Isaac Newton's physics ideas helped lead to his discoveries on black holes. It also covers white dwarfs (stellar corpses), the most famous being Sirius.

From the Paper
"The black hole was first named by the English physicist John Mitchell in 1783, more than two hundred years ago. But what are these black holes? Do they really exist? Based on planet movement studies made by Tycho Brahe and Johannes Kepler, John Mitchell deduced the existence of a force that made the Sun, the Earth, the Moon and everything contained in the cosmos."

Tags:Tycho, Brahe, Johannes, Kepler, Olaf, R?mer, Frieddrich, Bessel

Abstract
This paper discusses the asteroid which scientists believe caused the extinction of dinosaurs and the probability of another event such as this occurring. It also discuss the measurements government has taken to prevent a damaging impact and the different methods they will use to deter such an asteroid if one should come too near the Earth.

From the Paper
"Luckily for us, impacts that would cause massive destruction occur on Earth only about once ever 100,000 years (NASA Ames Space Science Division). According to NASA, these dangerous asteroids capable of wreaking global havoc are extremely rare."

Tags:asteroid, barringercrater, global, impact, nasa, torino, yucatan

Abstract
The paper defines black holes and explains what they are made up of. The paper explores common misconceptions surrounding black holes, as well as other mysteries. Finally the paper examines theories regarding how black holes eventually end.

From the Paper
"Black holes, one of space's greatest phenomenons, appear to be tremendous concentrations of matter, usually at the center of a galaxy; however, smaller back holes are possible. The matter is in the form of neutrons, protons, and electrons, tightly packed together by their mutual gravitational attraction. The beautifully descriptive name comes from the fact that light cannot exit from a Black hole. They are suspected to form in the death and collapse of a star that began with more than10 times the sun's mass (those with less mass become white dwarfs or neutron stars)."

Tags:galaxy, Albert Einstein, radiation

Abstract
This paper looks at black holes in terms of the most prevalent theories. It first, defines what we have come to understand as a black hole. It then touches upon how black holes are documented and measured. Thirdly, it examines the black hole believed to be at the center of our own Milky Way galaxy. Finally, it explores the prevalent hypothesis that black holes are in fact the genesis of all galaxies.

From the Paper
"Gravity is the cause of black holes. A black hole is the unlimited and irresistible force of ultimate gravity in the universe. To understand how a black hole is created, it is helpful to understand a bit about the basics of gravity. Imagine shooting an arrow into the sky. The harder you shoot the arrow, the farther it will go in attempting to escape the pull of the Earth's gravity. If you were to use a big enough bow with enough force you could help the arrow reach speeds exceeding 7miles per second which is the escape velocity for the Earth. Escape velocity indicates the minimum speed necessary to beat the pull of the planet's gravitational core (Cowen , 390). The strength of the gravitational pull of the core is determined by the density and mass of the core. The denser and more massive that the core is, the greater the gravitational pull. If you were to drop a ball to the center of the earth, the gravitational forces would crush it into an ever shrinking volume requiring even greater amounts of force to help it reach escape velocity. As the greatest theoretical speed for any physical object in the universe is that of light (which travels at 186 thousand miles per second) a mass large and dense enough can actually exert so much force that not even light can achieve escape velocity. The object that can pull even light into it and keep it from escaping is a black hole."

Tags:earth, gravity, milky, way, galaxy

Abstract
The paper describes a black hole as a region of space that has so much mass concentrated in it that there is no way for a nearby object to escape its gravitational pull. Black holes are thought to be formed from stars or other massive objects when they collapse from their own gravity to form an object whose density is infinite. This paper covers the topic of black holes including definition, origin, history and size.

From the Paper
"In the 1930s, researchers began to prove that black holes may actually exist. They showed that when a sufficiently massive star runs out of fuel, it is unable to support itself against its own gravitational pull and should collapse into a black hole.

"The term "black hole" was coined by physicist John Archibald Wheeler coined in the 1960s. So why did Wheeler choose to call them black holes? The main reason was since no light can escape from inside a black hole, it seemed logical. Before Wheeler invented the term, black holes were commonly referred to as "frozen stars." "

Tags:theory, of, general, relativity, John, Michell, Schwarzschild, supernova, Astronomers, galaxies

Abstract
An article about various theories which describe the origin of the universe. The author investigates each theory: steady state theory, geometric theory, small bang theory and big bang theory and provides a personal opinion about the relevance of each.

From the Paper
"Since the dawn of intelligent man, humanity has speculated about the origins of the universe. There is evidence, which indicates that the universe started around 15 billion years ago. This is probably the greatest discovery imaginable; however, the universe still seems to be a very controversial subject. Most scientists agree that there was a beginning but there is a lot of speculation of how it (the universe) actually started. The much-celebrated Greek philosopher, Aristotle, denied the fact that there ever was a beginning. He and his associates believed in the eternal existence of the universe, they also tried to prove that the universe was static, and was unchanging in time. However, there is evidence, which suggests that the universe is changing with time."

Tags:evolution, bang, geometry, physics, science, world