StudentShare
Contact Us
Sign In / Sign Up for FREE
Search
Go to advanced search...
Free

Astronomy fifth assignment - Essay Example

Comments (0) Cite this document
Summary
In the class notes we make use of the Drake equation as providing a statistical estimate of the number of civilizations that might exist in our Galaxy and are capable of communication. Recently, however, some scientists have argued that the Drake equation is an inaccurate…
Download full paperFile format: .doc, available for editing
GRAB THE BEST PAPER96.1% of users find it useful
Astronomy fifth assignment
Read TextPreview

Extract of sample "Astronomy fifth assignment"

Astronomy Fifth Assignment al Affiliation) Astronomy 122 Fifth Homework Template In the s we make use of the Drake equation as providing a statistical estimate of the number of civilizations that might exist in our Galaxy and are capable of communication. Recently, however, some scientists have argued that the Drake equation is an inaccurate description. This new theory is known as the "Rare Earth Theory" (by Ward and Brownlee). Do some research on this new theory and identify what the key components of this theory are that suggests planets like the Earth are much rarer than we think they are.
Your response here:

2. A dramatic new view of the geologic history of the Earth has arisen in the last few years. This view is quite controversial and is known as "Snowball Earth." Summarize what this theory is and what is some of the evidence for and against this hypothesis.
Snowball Earth describes hypothesis that many years the Earth was wholly or entirely covered with ice that stretched from the poles to tropics. The freezing happened in the pre-cambrian, over 60 years ago. It is thought that there occurred more of global glaciations. They differed in time and stretch but when a full on snow events, life could be attached on ice free refuges or at places where sunlight managed penetration through the ice allowing photosynthesis. The opponents of the theory contest the effect of the evidence for the glaciation, the geophysical feasibility of the ice and the difficulty in escaping the frozen condition.
3. Do some research on hydrothermal vents and their associated biological communities. Provide an argument that it is this environment that is most responsible for the existence of life on Earth.
4. Do some research on the rate at which Greenland is Melting and provide evidence that we are nearing a point of return where the ice sheet cannot recover.
5. Do some research on the warming in the arctic and the thawing of Arctic permafrost which releases Methane as part of the thawing process. Discuss whether or not you think we are now heading towards a climate catastrophe.
References
Lippincott, K. (2004). Astronomy. New York: Dorling Kindersley. Read More
Cite this document
  • APA
  • MLA
  • CHICAGO
(“Astronomy fifth assignment Essay Example | Topics and Well Written Essays - 500 words - 1”, n.d.)
Retrieved from https://studentshare.org/formal-science-physical-science/1648239-astronomy-fifth-assignment
(Astronomy Fifth Assignment Essay Example | Topics and Well Written Essays - 500 Words - 1)
https://studentshare.org/formal-science-physical-science/1648239-astronomy-fifth-assignment.
“Astronomy Fifth Assignment Essay Example | Topics and Well Written Essays - 500 Words - 1”, n.d. https://studentshare.org/formal-science-physical-science/1648239-astronomy-fifth-assignment.
  • Cited: 0 times
Comments (0)
Click to create a comment or rate a document

CHECK THESE SAMPLES OF Astronomy fifth assignment

Astronomy

... Neighbour” (January 12, 2006) March 31, 2011 astronomy/My%20Webs/Yr%208%20Astro/The%20Moon.htm> Cooley, Keith. “Moon Tides.” (2002). March 31, 2011 Hamilton, Rosanna L. “The Moon.” Solar Views. March 30, 2011 Heiken, G.; Vaniman, D.; French, B. (Eds.). Lunar Sourcebook: A User’s Guide to the Moon. New York: Cambridge University Press, 1991. Miles, Kathy A. & Peters, Charles F. II. “What if the Moon Didn’t Exist?” Starry Skies. (2001). March 30, 2011 Than, Ker. “The Origins of the Man in the Moon.” Space.com. (2006). March 31, 2011 ... The Moon The moon has been the of wonder, story, rhyme and song since the beginnings of mankind. People’s fascination with the moon has extended to fairy tale and myth, religious ceremony, hunting and farming rituals, boating routines and romance. The moon...
5 Pages(1250 words)Research Paper

Astronomy assignment 2

...AST201 Assignment A Puzzling Binary a)  White Dwarfs - low mass stars with less than 2MSun , live longer because of lower rate of nuclear fusion in the core, longer hydrogen consumption Neutron Stars - high mass stars with more than 8MSun , shorter life because of faster rate of hydrogen fusion to answer equilibrium need between gravity and pressure (Bennett 2009).  The puzzling thing: the supernova explosion coming only after the white dwarf formation considering that: a supernova explosion is a product of a high-mass star’s evolution while a a white dwarf is formed by a low mass-star’s end a high-mass star has a shorter life than a low-mass star stars in a binary system are born almost at the same time, therefore...
3 Pages(750 words)Essay

Astronomy

...1. What is the scientific view of astronomy? The scientific view of astronomy is when an individual tries or is taught about the planets, stars, and constellations. The focus of these studies are what make up these heavenly bodies, how they move, and more of the substance of the planets and stars. 2. a. what are constellation? What purpose did they serve to ancient civilizations? A constellation is a grouping of stars and planets that form patterns. In ancient civilizations constellations were used for astrology or myths. Astrology is where stars and planets are tracked in order to predict an individual or society’s future. Constellations like Orion, Mars, and Jupiter were mythical gods to ancient civilizations. b...
3 Pages(750 words)Essay

Astronomy

... by Atheists. No omniscient being could have created the Earth, because the scientific proof shows otherwise. Unlike the agnostic that does not believe because lack of evidence, Atheists believes no higher power ever existed. The astronomy findings and other science are often touted as proof of their beliefs. Intelligent Design is the new compromise that Christians, Islam, Judaism, and even Eastern religions have made about a higher power creating the universe. Basically an Intelligent Design example is of building blocks. When an individual take building blocks with the alphabet or numbers and throw them on the floor, rarely if any design can be determined. The universe is too complex for it to have left to chance. Evolution, according...
2 Pages(500 words)Essay

Astronomy

...ASTRONOMY ASTRONOMY THE SKY MODEL FROM THE SAME SPOT TO THE NEAREST INCH Source: Suhai, B.; Horváth, G. (2004).How well does the Rayleigh Sky Model describe the E-vector distribution of Skylight in clear and cloudy conditions. According to the Rayleigh sky model the daytime pattern of the sky is described in a polarized set up. The effect of Rayleigh scattering causes the light of the sky to have a definite pattern of polarization hence the blue color through the elastic scattering. This effect is mainly attributed to the scattering of light from water, aerosols, water and light from water molecules. At each wavelength the polarization is determined by the degree of polarization and orientation also known as the scattering angle...
2 Pages(500 words)Essay

Astronomy assignment

... about 7.4 days. The crescent moon also occurs between the new and the first quarter. Then the full moon appears in about 14.8 days before which the gibbous phase occurs. Then the waning state starts to occur immediately after the full moon until the 29th day when the cycle starts again. Works Cited  Pamela, Gore. Phases of the Moon. Georgia Perimeter College, Jan 01 1996. Available at: http://facstaff.gpc.edu/~pgore/astronomy/astr101/moonphas.htm. Retrieved on: March 15 2013... Phases of the Moon The relationship between the Sun, the planets which in this case orbit the sun, their satellites and many other small objects like comets and asteroid make up the solar system. All the objectives in the solar systems moves around the sun as can be...
2 Pages(500 words)Essay

Astronomy assignment

...Astronomy assignment Astronomy assignment Arrange the following in order of physical size from smallest to largest: A human being Saint Mary’s Campus A large Comet’s nucleus The moon The sun A large planet A tiny meteoroid The star Betelgeuse A small Galaxy The Milky Way Galaxy The peninsula of Halifax 2. Why did Kepler deduce the elliptical orbits of planets from Tycho’s data where so many other earlier astronomers and learned men had missed it? Kepler deduce on the elliptical optical of planets from Tyco’s data indicates the distinction between an oval and the old model of a loop and elliptical orbits, which gives a ring with the Sun unbalanced, was small to the point that it required high correctness to recognize the contrast...
1 Pages(250 words)Essay

Astronomy Major Assignment

...Supernova There are many deep objects and many events in the space of the universe. One such event is the supernova. This is an event that occurs at the end of the lifespan of a star. It describes an extreme explosion of huge stars radiating a lot of energy (Bodenheimer, 2011). This explosion radiates three forms of energy: Light energy, heat energy and radioactive radiations. The explosion of a supernova lasts for a short duration approximated at around 100 seconds. The explosion of the supernova results into remnants of neutron stars or black holes. The supernova produces cosmic rays. These are rays that form from the interaction of the shock waves with subatomic particles causing acceleration of rays with the speed of light... There are...
5 Pages(1250 words)Research Paper

Astronomy Homework Assignment

... Question Like most Greek philosophers, Aristotle also believed that the universe existed infinitely (Woolfson 25). When Einstein came up with the revolutionary theory of relativity in 1951, he proposed that space and time were dynamic quantities shaped by energy. There was no background of events hence was not possible to talk of time before the universe began. There are problems that arise with the theory of infinite age, since the physical observations seem to contradict the idea. An excellent example is the stars and galaxies. Stars do not have a uniform distribution in space. Galaxies are not close to each other. Hence, perhaps at one point, there were star clusters at one place and galaxies closer to each other. Question 2... Question...
1 Pages(250 words)Essay

Astronomy 123 Homework Assignment

... Astronomy 1a b).The assumptions used by Hubble He used a standard ruler assumption which assumes that all galaxies in the universe are of the same size and type for uniformity. Another assumption was that the smaller and fainter the galaxy is, the longer the distance it is and faster move from us. The velocity (v) = Ho d whereby v is the velocity, d is the distance to and Ho is proportionately constant. All the zero age main sequence stars start at the same luminosity given temperature. 2. Andromeda galaxy as spiral nebula and Andromeda galaxy with spiral were all small bodies that were part of the Milky Way. He believed that everything in the space was located within the galaxy. Shapley advocated a proposition of relative size to support...
1 Pages(250 words)Assignment
sponsored ads
We use cookies to create the best experience for you. Keep on browsing if you are OK with that, or find out how to manage cookies.

Let us find you another Essay on topic Astronomy fifth assignment for FREE!

Contact Us