The first black hole was discovered in 1971 and John Wheeler, an American astronomer, coined the term black hole in 1967 (“Black Holes: Facts”). Black holes are formed out of pieces of a star that have exploded in a supernova explosion (“Black Holes – NASA”). They are also formed when two stars have a stellar collision to form bigger black holes (“Black Holes – NASA”). A star, about three times the size of the sun, cannot collapse due to the effects of gravity (“Black Holes – NASA”). When the star is collapsing it nears the event horizon where time slows down (“Black Holes – NASA”).
He then ended up studying physics, as mathematics was not available at the University College. Stephen then went on to Cambridge University to study Cosmology, the metaphysical study of the origin and nature of the universe. After gaining a PhD in this subject, he became a Research Fellow, and a Professorial Fellow at Gonville and Caius College. After deciding to opt out of a career in Astronomy, he came to the Department of Applied Mathematics and Physics, and since 1979, he has held the position of Lucasian Professor of Mathematics. Since this day in 1979, Stephen Hawking has worked on the basic laws that control the universe that we live in.
Scientist pre-Einstein could not comprehend how a wave such as light could hypothetically be influenced by a force such as gravity. However, when Einstein opened the door, black holes suddenly became a possibility, and it took a better half of a century before their existence could be proven, let alone monitored. Now, we have a better understanding of what black holes are, and how they come to be. Black holes are believed to be the result of the explosion of a very large star, at least 25 times larger than our own. When the star explodes, much of its matter is blown out into space, resulting in a supernova.
After the star becomes a very small sphere, it explodes like a giant nuclear bomb and becomes a billion times as bright as our own sun. All kinds of matter and radiation are blasted into space. This matter and radiation travels through space at nearly the speed of light (186,000 miles per second) Now, if one of these supernovae were to occur within about 130 light years of Earth, some scientists feel that life on earth would be drastically affected. Since a light year is the distance light travels in one year, 130 light years is about 760,000,000,000,000 (760 quadrillion miles!). So, suppose a supernova had occurred sixty-five million years ago within 130 light years of Earth, how exactly would it cause the death of the dinosaurs?
Steven Hawking Steven William Hawking was born on January 8, 1942, in Oxford, England. He was always interested in science and how things worked. From about the age of 20, he was awarded a first class honors degree in Natural Sciences. After receiving his degree, Steven went to Cambridge, to do research on Cosmology. After receiving his Ph.D., he left the Institute of Astronomy and since then he has held the post of Lucasian Professor of Mathematics.
This is usually the last stage of the death of a star. The first stage when the star turns into a white dwarfs then if it is big enough, it will create a supernova and explode. The explosive parts and the gravitational pull fight with each other and depending on the size of the star, it creates a black hole. With the dead remains of the supernova explosion, the star collapses onto itself to create a black hole. Because no inertia controls the gravity, the black hole becomes infinitely dense.
Even then, it took another two billion years of cooling for enough clumps of interstellar dust and gas, called molecular clouds, to achieve stability in the universe. From these molecular clouds, stars were able to form due to compression of the material by gravitational forces. In the core of a star fusion takes place that causes it to emit light. If the star is initially large enough, its death happens in the form of a supernova explosion. During this explosion, in less than one second, every element up to and including uranium is synthesized by fusion and dispersed into space.
In 1968, Witten published an article in The Nation arguing that the New Left had no strategy.  He worked briefly for George McGovern's presidential campaign. McGovern lost the 1972 election in a landslide to Richard Nixon. Witten attended the University of Wisconsin–Madison for one semester as an economics graduate student before dropping out.  He returned to academia, enrolling in applied mathematics at Princeton University in 1973, then shifting departments and receiving a Ph.D. in physics in 1976 under David Gross, the 2004 Nobel laureate in Physics.
The nebula was thought to be a few light years across and was roughly spherical in shape. The cloud was in a state of balance, it was neither contracting or expanding, until a cataclysmic event, most likely a supernova, created a shock wave through the nebula, resulting in an area of higher mass. Once this area became more massive than the rest of the nebula it begin to collapse with the area of hig... ... middle of paper ... ...planetesimals that once orbited the sun but were, at one point, captured into a planetary orbit by the planet's gravity. Cratering is also a sign of these period, with the collision of planetesimals into larger ones being the explanation. Overall we can get a pretty good insight on how or Solar System was formed, yes there are still certain aspects of it that are hard to make sense of, as well as debates over which theory is correct, such as Core Accretion vs.
Smoot became a physics professor at Berkeley in 1994. George Smoot is also an actor. He made two cameo appearances on CBS’s “The Big Bang” where he gave lectures and attend conferences. Smoot has given two lectures at TED events discussing “The Design of the Universe” as well as “You are a Simulation & Physics Can Prove It.” In 2009, George Smoot became the first person to win the million dollar prize on, “Are You Smarter Than a 5th Grader?” Smoot is the author to more than 200 science papers and his own book titled, “Wrinkles in Time.” The book focuses on Smoot’s discovery; the “seeds” the universe grew from and the journey it took him on, for 20 years, to find the “Holy Grail of Science.” The research within his book eventually lead to him winning the Nobel Prize and his book being reprinted with a quote from Stephen Hawking saying “the scientific discovery of the century, if not all time.” George Smoot’s most significant discovery began in April of 1992... ... middle of paper ... ... is causing the expansion of the universe to accelerate. Planck, funded by the European Space Agency (ESA), is a mission to provide answers to how the universe began, how it transformed, and how will it continue in our future.