Jake Henry

Fall 2012


Jupiter's largest innermost moon known as Io was founded in 1610 by Galileo Galilee. It is known as one of the four Galilean moons that orbits Jupiter because it was spotted by himself. Io was named after the priestess of Hera who was a lover of Zeus. Io is slightly larger than Earth's moon Luna and is the fifth largest known moon in the solar system. Io is also one of the most active moons in the solar system and has a surface that changes frequently due to heat generated from tidal heating.

1.) Io: Overview



Author: Phil Davis

Last Updated: April 24th, 2012

Date Reviewed: December 3, 2012

Reviewed By: Jake Henry

Image Source: http://solarsystem.nasa.gov/multimedia/gallery/Voyager_Io_732X520.jpg

Accuracy: This is a NASA website and funded through the government thus has credibility and viability. The article written discusses the broad overview of the Jupiter's moon Io. It talks about Io's orbit and basic size dimensions as well as explaining how it was discovered and where it got it's name from. The article further explains Io's volcanic surface and the tidal heating that causes Io to have such as high temperature.

Readability and Clarity: This page is easy to read and the outline of the page offers categories of information to access including a beautifully detailed photo gallery that has many excellent images of Io. It is directed mainly towards a student audiance ages 13+ and the grammer and word formulation is appropriate for that audiance. It is easy to read and understand as well.

Ease of Navigation: It is very easy to navigate this page and each new section has a click-able category to jump the viewer from section to section. There are more pages beyond the homepage most of which are opened in the same tab currently viewing. All pages have the option to go back to the main page so it is very hard to get lost.

2.) Io, Jupiter's Moon



Author: Calvin J. Hamilton

Last Updated: February 12th, 2009

Date Reviewed: December 3, 2012

Reviewed By: Jake Henry

Image Source: http://www.solarviews.com/thumb/jup/iomap2.jpg

Accuracy: This webpage contains very accurate content and it is up to date with the exception that since 2009 when the article was last published Jupiter has gone from 62 known moons to 67. All other material on the site is credible and relevant.

Readability and Clarity: This page takes the form of an online article and is targeted to an audaince that has a basic preconception of Io. It is appropriatly written and has easy to read phrases that do an exceptional job explaining facts to the reader. The best part of this website is the large table located halfway down the page which displays all of Io's specs in a neat and well organized manner.

Ease of Navigation: The site is basic in form and is aimed that way to be more educational than confusing. The majority of the content is located on the first page however, there are several links in the left hand column that can direct the reader to certain pieces of information about Io including, 'Io's volcanic features' and 'Maps of Io'. All external links open up pages in the same window so multiple pages cannot open in new tabs.

3.) Io: Jupiter's Volcanic Moon



Author: Janet Stuhr Wood

Last Updated: June 5th, 2003

Date Reviewed: December 3rd, 2012

Reviewed By: Jake Henry

Image Source: http://www.planetaryexploration.net/jupiter/io/images/galileo_io_spacecraft.jpg

Accuracy: The above site is deemed very accurate and there appears to be no contradicting information between this article and others reviewed. It could use a few corrections when stating how many moons Jupiter has and the exact dimensions for mass differ slightly but other than that all information is currently relevant.

Readability and Clarity: I personally like this page over all of the others because it doesn't overwhelm the view with too much information all at once. The homepage to the site offers a brief overview of what Io is and all other needed information comes in the form of clickable links on the left coloum. Although easier and less overwhelming the clickable links also require the viewer to know what information to request before finding it. It is because of this that the website is more geared towards research and having the viewer know what he/she wants to find before arriving. All information is easy to read and displayed in an easy to understand fashion.

Ease of Navigation: This webpage is very easy to navigate and doesn't have any advertisements or flash animations to obscure and distract the viewer. All clickable links open pages in the same tab and the pages are back lit with one solid color to make viewing material easier on the eyes. All of the external links to the page are located in the left hand column.

4.) Io, moon of Jupiter

io03_sk12.jpg http://www.seasky.org/solar-system/jupiter-io.html

Author: Jonathan G. Howard

Last Updated: October 16th, 2011

Date Reviewed: December 3rd, 2012

Reviewed by: Jake Henry

Image Source: http://www.seasky.org/solar-system/assets/images/io03_sk12.jpg

Accuracy: All information in the article appears to be not only relevant but it has also been updated within the last year and thus provides very current information on Io. It boasts several unique pictures that are sure to attract many and also has brief articles that explain the main points of Io. This page also has a nice detailed table of Io's specs (though not as detailed as No.3) in which no information contradicts other previous information.

Readability and Clarity: The webpage sports a nice black background with colored text to make viewing the page easy on the eyes. It was directed towards a younger audience as most of the information provided is brief and not extremely in depth. All information on the page is easy to read and grammer and vocabulary used is aimed at younger or new researches on Io.

Ease of Navigation: This page is very easy to navigate and has large clickable buttons at the top to steer the viewer towards other moons. All of the information is displayed on the first page and therefore finding information not on the front page is not plausible. External links are present on the top and right side of the page but most of which will take you to other moons or other planets. Overall the page is quite simplistic in form and very easy to navigate.

5.) Io For Kids



Author: Stephen O'reily

Last Updated: 2011

Date Reviewed: December 3rd, 2012

Reviewed by: Jake Henry

Image Source: http://www.planetsforkids.org/images/lo-1.jpg

Accuracy: The information provided on this website is very accurate and very simple. The page was last updated in 2011 and appears to have no contradicting facts. All of the information is put in simplicity form and is not very in depth but is correct nonetheless.

Readability and Clarity: This page is definitly geared towards younger students more in the elementrary level of education and uses grammer and phrases that are at the 4th-6th grade reading level. The page offers colorful pictures and is laid on a background that has the universe on it. The article was very easy to read and offered many of the key points of Io. It was also easy to follow because most of the information went in order down the page and all flowed together easily.

Ease of Navigation: The downfall of this page is that because it was written for a younger audience it offers little information other than what is on the main page. There are more pages beyond the homepage but all of which open up external windows and are about other planets. The page does however have a 'childrens look' to it and it can only be assumed that it is used for educational purposes in elementary science classes.

6.) Io: Moon on Fire

external image 240px-PIA01667-Io%27s_Pele_Hemisphere_After_Pillan_Changes.jpg


Author: Helen Matsos

Last Updated: October 26th, 2003

Date Reviewed: May 20th, 2012

Reviewed by: Kelsey Cox

Image Source: http://upload.wikimedia.org/wikipedia/commons/thumb/c/c1/PIA01667-Io%27s_Pele_Hemisphere_After_Pillan_Changes.jpg/220px-PIA01667-Io%27s_Pele_Hemisphere_After_Pillan_Changes.jpg

Accuracy: This website is sponsored by NASA and is a credible source of information. The article provides detailed material on the relative size, surface features and history of Io. A thorough description of Io’s composition, mountains and volcanoes is given. This website provides a recent focus of astronomers, a significant amount of information and an overall idea to the reader.

Readability and Clarity: This webpage targets an adult audience with some prior knowledge about the topics. The article is lengthy, featuring only one picture, but does deliver sufficient information.This page would be educational to high school or college students.

Ease of Navigation: The overall ease of navigation of this page is satisfactory. There are related web pages about similar topics at the bottom. The site is organized as an easy to use online magazine. No ads interfere with the information on the page.

7.) Jupiter Moon Io

external image Io_Aurorae_color.jpghttp://www.solarsystemquick.com/io.htm

Author: Unknown

Last Updated: 2012

Date Reviewed: May 21st, 2012

Reviewed by: Kelsey Cox

Accuracy: The information of this website seems accurate and beneficial. Interesting facts are conveniently placed on the right side of the page and give data that would be valuable for a project or report. Substantial information about space probes and past missions as well as an overall summary of Io is given.

Readability and Clarity: This webpage is directed towards a younger audience, but is suitable for high school or college students as well. It is set up so no prior knowledge is necessary, giving appropriate information about space missions, many useful pictures and plenty of facts. Information is straight forward and listed clearly.

Ease of Navigation: The navigation of this page is considerably good. The website and page itself is broken up into user-friendly categories, in which a smooth transition into further research on more topics is made easy. Aside from the one ad in the center of the page, all information is orderly.

Image Source: http://upload.wikimedia.org/wikipedia/commons/thumb/6/62/Io_Aurorae_color.jpg/240px-Io_Aurorae_color.jpg

8.) Io

external image 320px-PIA01129_Interior_of_Io.jpg


Author: Jennifer Bergman

Last Updated: September 16th, 2003

Date Reviewed: May 20th, 2012

Reviewed by: Kelsey Cox

Accuracy: This webpage gives a very brief introduction of Io in which further research must be reached through its listed related links. The information seems rather accurate, although vague, but gives an idea of Io’s relative size and composition. This website would not be ideal for a complete report on Io.

Readability and Clarity: This site would be directed towards older children and high school students. None of the wording is difficult, nor is prior knowledge needed. Internal links for some descriptive words are inserted for those who need more information on a particular subject in order to comprehend what they are reading.

Ease of Navigation: The navigation of this page is considerably simple having related links apparent. Many words within the introduction paragraph are hyperlinked to more information on Io. There is a block of ads near the middle of the site, but it is easily avoided. More useful links with pictures and previews are at the bottom of the page.

Image Source: http://upload.wikimedia.org/wikipedia/commons/thumb/2/2d/PIA01129_Interior_of_Io.jpg/220px-PIA01129_Interior_of_Io.jpg

9.) Jupiter’s Galilean Moons – Io

external image Galilean_moon_Laplace_resonance_animation.gif


Author: James Adams

Last Updated: September 12th, 2010

Date Reviewed: May 20th, 2012

Reviewed by: Kelsey Cox

Accuracy: This is a great link for summarized information about Io. Although not all topics concerning Io are touched, it gives brief description and background. Its page design makes it easy to navigate with headlined links throughout the sections and on the left hand side. Background information, pronunciation, reasons for its surface features and a comparison to other moons are given. The webpage gives an adequate amount of information, but other links on the site must be visited in order to obtain a full understanding of Io.

Readability and Clarity: This website is set up to be easily read and understood. It targets a younger audience and would be beneficial to all students.The reader does not need any specialized or previous knowledge to understand the information on this site.

Ease of Navigation: The site is rather easy to navigate with specific similar links made accessible for further research. Important words within the page’s information are also linked to others within the database. The site features a Google search function and a page translator at the bottom.

Image Source: http://upload.wikimedia.org/wikipedia/commons/thumb/8/83/Galilean_moon_Laplace_resonance_animation.gif/300px-Galilean_moon_Laplace_resonance_animation.gif

10.) Io

external image Tvashtarvideo.gif


Author: Paul M. Schenk

Last Updated: 1997

Date Reviewed: May 20, 2012

Reviewed by: Kelsey Cox

Accuracy: This website provides specific information about the volcanoes and surface of Io and shows photos taken by space probes. Though very little information is given, this webpage seems very accurate and gives a greater understanding of the characteristics of Io. However, this website alone could not give a comprehensive understanding of the moon. A quick summary of Io and its surface features are given with photos that can be enlarged when clicked on.

Readability and Clarity: This website is designed for an adult audience and extensive research regarding Io’s appearance and volcanoes. Prior knowledge of Io is necessary and the wording would be somewhat challenging to children. Sources of books for further reading are cited at the bottom of the page.

Ease of Navigation: This page is not appealingly clear, but the information is well defined. The small pictures that are enlarged in a different tab when clicked on. The site itself is plain so navigation is not particularly difficult, but more so indistinct.

Image Source: http://upload.wikimedia.org/wikipedia/commons/thumb/1/12/Tvashtarvideo.gif/220px-Tvashtarvideo.gif