{"id":647,"date":"2022-03-02T19:09:30","date_gmt":"2022-03-02T19:09:30","guid":{"rendered":"https:\/\/pressbooks.ccconline.org\/astronomy\/?post_type=chapter&#038;p=647"},"modified":"2022-03-02T19:09:31","modified_gmt":"2022-03-02T19:09:31","slug":"for-further-exploration-21","status":"publish","type":"chapter","link":"https:\/\/pressbooks.ccconline.org\/astronomy\/chapter\/for-further-exploration-21\/","title":{"raw":"For Further Exploration","rendered":"For Further Exploration"},"content":{"raw":"<div><section id=\"fs-id1163973144452\" data-depth=\"2\">\r\n<h4 data-type=\"title\">Articles<\/h4>\r\n<section id=\"fs-id1163976808146\" data-depth=\"3\">\r\n<h5 data-type=\"title\"><em data-effect=\"italics\">Star Formation<\/em><\/h5>\r\n<p id=\"fs-id1163976684539\">Blaes, O. \u201cA Universe of Disks.\u201d\u00a0<em data-effect=\"italics\">Scientific American<\/em>\u00a0(October 2004): 48. On accretion disks and jets around young stars and black holes.<\/p>\r\n<p id=\"fs-id1163976655666\">Croswell, K. \u201cThe Dust Belt Next Door [Tau Ceti].\u201d\u00a0<em data-effect=\"italics\">Scientific American<\/em>\u00a0(January 2015): 24. Short intro to recent observations of planets and a wide dust belt.<\/p>\r\n<p id=\"fs-id1163973141199\">Frank, A. \u201cStarmaker: The New Story of Stellar Birth.\u201d\u00a0<em data-effect=\"italics\">Astronomy<\/em>\u00a0(July 1996): 52.<\/p>\r\n<p id=\"fs-id1163976948724\">Jayawardhana, R. \u201cSpying on Stellar Nurseries.\u201d\u00a0<em data-effect=\"italics\">Astronomy<\/em>\u00a0(November 1998): 62. On protoplanetary disks.<\/p>\r\n<p id=\"fs-id1163976716984\">O\u2019Dell, C. R. \u201cExploring the Orion Nebula.\u201d\u00a0<em data-effect=\"italics\">Sky &amp; Telescope<\/em>\u00a0(December 1994): 20. Good review with Hubble results.<\/p>\r\n<p id=\"fs-id1163976444480\">Ray, T. \u201cFountains of Youth: Early Days in the Life of a Star.\u201d\u00a0<em data-effect=\"italics\">Scientific American<\/em>\u00a0(August 2000): 42. On outflows from young stars.<\/p>\r\n<p id=\"fs-id1163973195497\">Young, E. \u201cCloudy with a Chance of Stars.\u201d\u00a0<em data-effect=\"italics\">Scientific American<\/em>\u00a0(February 2010): 34. On how clouds of interstellar matter turn into star systems.<\/p>\r\n<p id=\"fs-id1163976939293\">Young, Monica \u201cMaking Massive Stars.\u201d\u00a0<em data-effect=\"italics\">Sky &amp; Telescope<\/em>\u00a0(October 2015): 24. Models and observations on how the most massive stars form.<\/p>\r\n\r\n<\/section><section id=\"fs-id1163976471939\" data-depth=\"3\">\r\n<h5 data-type=\"title\"><em data-effect=\"italics\">Exoplanets<\/em><\/h5>\r\n<p id=\"fs-id1163973113317\">Billings, L. \u201cIn Search of Alien Jupiters.\u201d\u00a0<em data-effect=\"italics\">Scientific American<\/em>\u00a0(August 2015): 40\u201347. The race to image jovian planets with current instruments and why a direct image of a terrestrial planet is still in the future.<\/p>\r\n<p id=\"fs-id1163973110162\">Heller, R. \u201cBetter Than Earth.\u201d\u00a0<em data-effect=\"italics\">Scientific American<\/em>\u00a0(January 2015): 32\u201339. What kinds of planets may be habitable; super-Earths and jovian planet moons should also be considered.<\/p>\r\n<p id=\"fs-id1163976523202\">Laughlin, G. \u201cHow Worlds Get Out of Whack.\u201d\u00a0<em data-effect=\"italics\">Sky &amp; Telescope<\/em>\u00a0(May 2013): 26. On how planets can migrate from the places they form in a star system.<\/p>\r\n<p id=\"fs-id1163976459503\">Marcy, G. \u201cThe New Search for Distant Planets.\u201d\u00a0<em data-effect=\"italics\">Astronomy<\/em>\u00a0(October 2006): 30. Fine brief overview. (The same issue has a dramatic fold-out visual atlas of extrasolar planets, from that era.)<\/p>\r\n<p id=\"fs-id1163976541328\">Redd, N. \u201cWhy Haven\u2019t We Found Another Earth?\u201d\u00a0<em data-effect=\"italics\">Astronomy<\/em>\u00a0(February 2016): 25. Looking for terrestrial planets in the habitable zone with evidence of life.<\/p>\r\n<p id=\"fs-id1163976725195\">Seager, S. \u201cExoplanets Everywhere.\u201d\u00a0<em data-effect=\"italics\">Sky &amp; Telescope<\/em>\u00a0(August 2013): 18. An excellent discussion of some of the frequently asked questions about the nature and arrangement of planets out there.<\/p>\r\n<p id=\"fs-id1163976907949\">Seager, S. \u201cThe Hunt for Super-Earths.\u201d\u00a0<em data-effect=\"italics\">Sky &amp; Telescope<\/em>\u00a0(October 2010): 30. The search for planets that are up to 10 times the mass of Earth and what they can teach us.<\/p>\r\n<p id=\"fs-id1163976905119\">Villard, R. \u201cHunting for Earthlike Planets.\u201d\u00a0<em data-effect=\"italics\">Astronomy<\/em>\u00a0(April 2011): 28. How we expect to find and characterize super-Earth (planets somewhat bigger than ours) using new instruments and techniques that could show us what their atmospheres are made of.<\/p>\r\n\r\n<\/section><\/section><section id=\"fs-id1163973157347\" data-depth=\"2\">\r\n<h4 data-type=\"title\">Websites<\/h4>\r\n<p id=\"fs-id1163976873332\">Exoplanet Exploration:\u00a0<a href=\"http:\/\/planetquest.jpl.nasa.gov\/\" target=\"_blank\" rel=\"noopener nofollow noreferrer\">http:\/\/planetquest.jpl.nasa.gov\/<\/a>. PlanetQuest (from the Navigator Program at the Jet Propulsion Lab) is probably the best site for students and beginners, with introductory materials and nice illustrations; it focuses mostly on NASA work and missions.<\/p>\r\n<p id=\"fs-id1163973093696\">Exoplanets:\u00a0<a href=\"http:\/\/www.planetary.org\/exoplanets\/\" target=\"_blank\" rel=\"noopener nofollow noreferrer\">http:\/\/www.planetary.org\/exoplanets\/<\/a>. Planetary Society\u2019s exoplanets pages with a dynamic catalog of planets found and good explanations.<\/p>\r\n<p id=\"fs-id1163976519329\">Extrasolar Planets Encyclopedia:\u00a0<a href=\"http:\/\/exoplanet.eu\/\" target=\"_blank\" rel=\"noopener nofollow noreferrer\">http:\/\/exoplanet.eu\/<\/a>. Maintained by Jean Schneider of the Paris Observatory, has the largest catalog of planet discoveries and useful background material (some of it more technical).<\/p>\r\n<p id=\"fs-id1163976904731\">Formation of Stars:\u00a0<a href=\"https:\/\/www.spacetelescope.org\/science\/formation_of_stars\/\" target=\"_blank\" rel=\"noopener nofollow noreferrer\">https:\/\/www.spacetelescope.org\/science\/formation_of_stars\/<\/a>. Star Formation page from the Hubble Space Telescope, with links to images and information.<\/p>\r\n<p id=\"fs-id1163976721370\">Kepler Mission:\u00a0<a href=\"https:\/\/www.nasa.gov\/mission_pages\/kepler\/overview\/index.html\" target=\"_blank\" rel=\"noopener nofollow noreferrer\">https:\/\/www.nasa.gov\/mission_pages\/kepler\/overview\/index.html<\/a>. The public website for the remarkable telescope in space that is searching planets using the transit technique and is our best hope for finding earthlike planets.<\/p>\r\n<p id=\"para-00001\">NASA Exoplanet Exploration Dashboard:\u00a0<a href=\"https:\/\/exoplanets.nasa.gov\/discovery\/discoveries-dashboard\/\" target=\"_blank\" rel=\"noopener nofollow noreferrer\">https:\/\/exoplanets.nasa.gov\/discovery\/discoveries-dashboard\/<\/a>. A handy place to find up-to-date information of exoplanet discoveries. This page is a summary of all discoveries by method and type. One click takes you to the full exoplanet catalog.<\/p>\r\n<p id=\"fs-id1168584389865\">Proxima Centauri Planet Discovery:\u00a0<a href=\"http:\/\/www.eso.org\/public\/news\/eso1629\/\" target=\"_blank\" rel=\"noopener nofollow noreferrer\">http:\/\/www.eso.org\/public\/news\/eso1629\/<\/a>.<\/p>\r\n\r\n<\/section><section id=\"fs-id1163976556044\" data-depth=\"2\">\r\n<h4 data-type=\"title\">Apps<\/h4>\r\n<p id=\"fs-id1163976421917\">Exoplanet:\u00a0<a href=\"http:\/\/exoplanetapp.com\/\" target=\"_blank\" rel=\"noopener nofollow noreferrer\">http:\/\/exoplanetapp.com\/<\/a>. Allows you to browse through a regularly updated visual catalog of exoplanets that have been found so far.<\/p>\r\n\r\n<\/section><section id=\"fs-id1163973356595\" data-depth=\"2\">\r\n<h4 data-type=\"title\">Videos<\/h4>\r\n<p id=\"fs-id1163973192688\">A Star Is Born:\u00a0<a href=\"https:\/\/www.youtube.com\/watch?v=mkktE_fs4NA\" target=\"_blank\" rel=\"noopener nofollow noreferrer\">https:\/\/www.youtube.com\/watch?v=mkktE_fs4NA<\/a>. Discovery Channel video with astronomer Michelle Thaller (2:25).<\/p>\r\n<p id=\"fs-id1163976908543\">Are We Alone: An Evening Dialogue with the Kepler Mission Leaders:\u00a0<a href=\"http:\/\/www.youtube.com\/watch?v=O7ItAXfl0Lw\" target=\"_blank\" rel=\"noopener nofollow noreferrer\">http:\/\/www.youtube.com\/watch?v=O7ItAXfl0Lw<\/a>. A non-technical panel discussion on Kepler results and ideas about planet formation with Bill Borucki, Natalie Batalha, and Gibor Basri (moderated by Andrew Fraknoi) at the University of California, Berkeley (2:07:01).<\/p>\r\n<p id=\"fs-id1163976441852\">Finding the Next Earth: The Latest Results from Kepler:\u00a0<a href=\"https:\/\/www.youtube.com\/watch?v=ZbijeR_AALo\" target=\"_blank\" rel=\"noopener nofollow noreferrer\">https:\/\/www.youtube.com\/watch?v=ZbijeR_AALo<\/a>. Natalie Batalha (San Jose State University &amp; NASA Ames) public talk in the Silicon Valley Astronomy Lecture Series (1:28:38).<\/p>\r\n<p id=\"fs-id1163976778572\">From Hot Jupiters to Habitable Worlds:\u00a0<a href=\"https:\/\/vimeo.com\/37696087\" target=\"_blank\" rel=\"noopener nofollow noreferrer\">https:\/\/vimeo.com\/37696087<\/a>\u00a0(Part 1) and\u00a0<a href=\"https:\/\/vimeo.com\/37700700\" target=\"_blank\" rel=\"noopener nofollow noreferrer\">https:\/\/vimeo.com\/37700700<\/a>\u00a0(Part 2). Debra Fischer (Yale University) public talk in Hawaii sponsored by the Keck Observatory (15:20 Part 1, 21:32 Part 2).<\/p>\r\n<p id=\"fs-id1163976540998\">Search for Habitable Exoplanets:\u00a0<a href=\"http:\/\/www.youtube.com\/watch?v=RLWb_T9yaDU\" target=\"_blank\" rel=\"noopener nofollow noreferrer\">http:\/\/www.youtube.com\/watch?v=RLWb_T9yaDU<\/a>. Sara Seeger (MIT) public talk at the SETI Institute, with Kepler results (1:10:35).<\/p>\r\n\r\n<\/section><\/div>\r\n<div class=\"textbox\">This book was adapted from the following: Fraknoi, A., Morrison, D., &amp; Wolff, S. C. (2016). For Further Exploration In <i>Astronomy<\/i>. OpenStax. https:\/\/openstax.org\/books\/astronomy\/pages\/21-for-further-exploration under a <a href=\"http:\/\/creativecommons.org\/licenses\/by\/4.0\/\" target=\"_blank\" rel=\"noopener noreferrer\">Creative Commons Attribution License 4.0<\/a><\/div>\r\n<div>Access the entire book for free at\u00a0<a href=\"https:\/\/openstax.org\/books\/astronomy\/pages\/1-introduction\">https:\/\/openstax.org\/books\/astronomy\/pages\/1-introduction<\/a><\/div>","rendered":"<div>\n<section id=\"fs-id1163973144452\" data-depth=\"2\">\n<h4 data-type=\"title\">Articles<\/h4>\n<section id=\"fs-id1163976808146\" data-depth=\"3\">\n<h5 data-type=\"title\"><em data-effect=\"italics\">Star Formation<\/em><\/h5>\n<p id=\"fs-id1163976684539\">Blaes, O. \u201cA Universe of Disks.\u201d\u00a0<em data-effect=\"italics\">Scientific American<\/em>\u00a0(October 2004): 48. On accretion disks and jets around young stars and black holes.<\/p>\n<p id=\"fs-id1163976655666\">Croswell, K. \u201cThe Dust Belt Next Door [Tau Ceti].\u201d\u00a0<em data-effect=\"italics\">Scientific American<\/em>\u00a0(January 2015): 24. Short intro to recent observations of planets and a wide dust belt.<\/p>\n<p id=\"fs-id1163973141199\">Frank, A. \u201cStarmaker: The New Story of Stellar Birth.\u201d\u00a0<em data-effect=\"italics\">Astronomy<\/em>\u00a0(July 1996): 52.<\/p>\n<p id=\"fs-id1163976948724\">Jayawardhana, R. \u201cSpying on Stellar Nurseries.\u201d\u00a0<em data-effect=\"italics\">Astronomy<\/em>\u00a0(November 1998): 62. On protoplanetary disks.<\/p>\n<p id=\"fs-id1163976716984\">O\u2019Dell, C. R. \u201cExploring the Orion Nebula.\u201d\u00a0<em data-effect=\"italics\">Sky &amp; Telescope<\/em>\u00a0(December 1994): 20. Good review with Hubble results.<\/p>\n<p id=\"fs-id1163976444480\">Ray, T. \u201cFountains of Youth: Early Days in the Life of a Star.\u201d\u00a0<em data-effect=\"italics\">Scientific American<\/em>\u00a0(August 2000): 42. On outflows from young stars.<\/p>\n<p id=\"fs-id1163973195497\">Young, E. \u201cCloudy with a Chance of Stars.\u201d\u00a0<em data-effect=\"italics\">Scientific American<\/em>\u00a0(February 2010): 34. On how clouds of interstellar matter turn into star systems.<\/p>\n<p id=\"fs-id1163976939293\">Young, Monica \u201cMaking Massive Stars.\u201d\u00a0<em data-effect=\"italics\">Sky &amp; Telescope<\/em>\u00a0(October 2015): 24. Models and observations on how the most massive stars form.<\/p>\n<\/section>\n<section id=\"fs-id1163976471939\" data-depth=\"3\">\n<h5 data-type=\"title\"><em data-effect=\"italics\">Exoplanets<\/em><\/h5>\n<p id=\"fs-id1163973113317\">Billings, L. \u201cIn Search of Alien Jupiters.\u201d\u00a0<em data-effect=\"italics\">Scientific American<\/em>\u00a0(August 2015): 40\u201347. The race to image jovian planets with current instruments and why a direct image of a terrestrial planet is still in the future.<\/p>\n<p id=\"fs-id1163973110162\">Heller, R. \u201cBetter Than Earth.\u201d\u00a0<em data-effect=\"italics\">Scientific American<\/em>\u00a0(January 2015): 32\u201339. What kinds of planets may be habitable; super-Earths and jovian planet moons should also be considered.<\/p>\n<p id=\"fs-id1163976523202\">Laughlin, G. \u201cHow Worlds Get Out of Whack.\u201d\u00a0<em data-effect=\"italics\">Sky &amp; Telescope<\/em>\u00a0(May 2013): 26. On how planets can migrate from the places they form in a star system.<\/p>\n<p id=\"fs-id1163976459503\">Marcy, G. \u201cThe New Search for Distant Planets.\u201d\u00a0<em data-effect=\"italics\">Astronomy<\/em>\u00a0(October 2006): 30. Fine brief overview. (The same issue has a dramatic fold-out visual atlas of extrasolar planets, from that era.)<\/p>\n<p id=\"fs-id1163976541328\">Redd, N. \u201cWhy Haven\u2019t We Found Another Earth?\u201d\u00a0<em data-effect=\"italics\">Astronomy<\/em>\u00a0(February 2016): 25. Looking for terrestrial planets in the habitable zone with evidence of life.<\/p>\n<p id=\"fs-id1163976725195\">Seager, S. \u201cExoplanets Everywhere.\u201d\u00a0<em data-effect=\"italics\">Sky &amp; Telescope<\/em>\u00a0(August 2013): 18. An excellent discussion of some of the frequently asked questions about the nature and arrangement of planets out there.<\/p>\n<p id=\"fs-id1163976907949\">Seager, S. \u201cThe Hunt for Super-Earths.\u201d\u00a0<em data-effect=\"italics\">Sky &amp; Telescope<\/em>\u00a0(October 2010): 30. The search for planets that are up to 10 times the mass of Earth and what they can teach us.<\/p>\n<p id=\"fs-id1163976905119\">Villard, R. \u201cHunting for Earthlike Planets.\u201d\u00a0<em data-effect=\"italics\">Astronomy<\/em>\u00a0(April 2011): 28. How we expect to find and characterize super-Earth (planets somewhat bigger than ours) using new instruments and techniques that could show us what their atmospheres are made of.<\/p>\n<\/section>\n<\/section>\n<section id=\"fs-id1163973157347\" data-depth=\"2\">\n<h4 data-type=\"title\">Websites<\/h4>\n<p id=\"fs-id1163976873332\">Exoplanet Exploration:\u00a0<a href=\"http:\/\/planetquest.jpl.nasa.gov\/\" target=\"_blank\" rel=\"noopener nofollow noreferrer\">http:\/\/planetquest.jpl.nasa.gov\/<\/a>. PlanetQuest (from the Navigator Program at the Jet Propulsion Lab) is probably the best site for students and beginners, with introductory materials and nice illustrations; it focuses mostly on NASA work and missions.<\/p>\n<p id=\"fs-id1163973093696\">Exoplanets:\u00a0<a href=\"http:\/\/www.planetary.org\/exoplanets\/\" target=\"_blank\" rel=\"noopener nofollow noreferrer\">http:\/\/www.planetary.org\/exoplanets\/<\/a>. Planetary Society\u2019s exoplanets pages with a dynamic catalog of planets found and good explanations.<\/p>\n<p id=\"fs-id1163976519329\">Extrasolar Planets Encyclopedia:\u00a0<a href=\"http:\/\/exoplanet.eu\/\" target=\"_blank\" rel=\"noopener nofollow noreferrer\">http:\/\/exoplanet.eu\/<\/a>. Maintained by Jean Schneider of the Paris Observatory, has the largest catalog of planet discoveries and useful background material (some of it more technical).<\/p>\n<p id=\"fs-id1163976904731\">Formation of Stars:\u00a0<a href=\"https:\/\/www.spacetelescope.org\/science\/formation_of_stars\/\" target=\"_blank\" rel=\"noopener nofollow noreferrer\">https:\/\/www.spacetelescope.org\/science\/formation_of_stars\/<\/a>. Star Formation page from the Hubble Space Telescope, with links to images and information.<\/p>\n<p id=\"fs-id1163976721370\">Kepler Mission:\u00a0<a href=\"https:\/\/www.nasa.gov\/mission_pages\/kepler\/overview\/index.html\" target=\"_blank\" rel=\"noopener nofollow noreferrer\">https:\/\/www.nasa.gov\/mission_pages\/kepler\/overview\/index.html<\/a>. The public website for the remarkable telescope in space that is searching planets using the transit technique and is our best hope for finding earthlike planets.<\/p>\n<p id=\"para-00001\">NASA Exoplanet Exploration Dashboard:\u00a0<a href=\"https:\/\/exoplanets.nasa.gov\/discovery\/discoveries-dashboard\/\" target=\"_blank\" rel=\"noopener nofollow noreferrer\">https:\/\/exoplanets.nasa.gov\/discovery\/discoveries-dashboard\/<\/a>. A handy place to find up-to-date information of exoplanet discoveries. This page is a summary of all discoveries by method and type. One click takes you to the full exoplanet catalog.<\/p>\n<p id=\"fs-id1168584389865\">Proxima Centauri Planet Discovery:\u00a0<a href=\"http:\/\/www.eso.org\/public\/news\/eso1629\/\" target=\"_blank\" rel=\"noopener nofollow noreferrer\">http:\/\/www.eso.org\/public\/news\/eso1629\/<\/a>.<\/p>\n<\/section>\n<section id=\"fs-id1163976556044\" data-depth=\"2\">\n<h4 data-type=\"title\">Apps<\/h4>\n<p id=\"fs-id1163976421917\">Exoplanet:\u00a0<a href=\"http:\/\/exoplanetapp.com\/\" target=\"_blank\" rel=\"noopener nofollow noreferrer\">http:\/\/exoplanetapp.com\/<\/a>. Allows you to browse through a regularly updated visual catalog of exoplanets that have been found so far.<\/p>\n<\/section>\n<section id=\"fs-id1163973356595\" data-depth=\"2\">\n<h4 data-type=\"title\">Videos<\/h4>\n<p id=\"fs-id1163973192688\">A Star Is Born:\u00a0<a href=\"https:\/\/www.youtube.com\/watch?v=mkktE_fs4NA\" target=\"_blank\" rel=\"noopener nofollow noreferrer\">https:\/\/www.youtube.com\/watch?v=mkktE_fs4NA<\/a>. Discovery Channel video with astronomer Michelle Thaller (2:25).<\/p>\n<p id=\"fs-id1163976908543\">Are We Alone: An Evening Dialogue with the Kepler Mission Leaders:\u00a0<a href=\"http:\/\/www.youtube.com\/watch?v=O7ItAXfl0Lw\" target=\"_blank\" rel=\"noopener nofollow noreferrer\">http:\/\/www.youtube.com\/watch?v=O7ItAXfl0Lw<\/a>. A non-technical panel discussion on Kepler results and ideas about planet formation with Bill Borucki, Natalie Batalha, and Gibor Basri (moderated by Andrew Fraknoi) at the University of California, Berkeley (2:07:01).<\/p>\n<p id=\"fs-id1163976441852\">Finding the Next Earth: The Latest Results from Kepler:\u00a0<a href=\"https:\/\/www.youtube.com\/watch?v=ZbijeR_AALo\" target=\"_blank\" rel=\"noopener nofollow noreferrer\">https:\/\/www.youtube.com\/watch?v=ZbijeR_AALo<\/a>. Natalie Batalha (San Jose State University &amp; NASA Ames) public talk in the Silicon Valley Astronomy Lecture Series (1:28:38).<\/p>\n<p id=\"fs-id1163976778572\">From Hot Jupiters to Habitable Worlds:\u00a0<a href=\"https:\/\/vimeo.com\/37696087\" target=\"_blank\" rel=\"noopener nofollow noreferrer\">https:\/\/vimeo.com\/37696087<\/a>\u00a0(Part 1) and\u00a0<a href=\"https:\/\/vimeo.com\/37700700\" target=\"_blank\" rel=\"noopener nofollow noreferrer\">https:\/\/vimeo.com\/37700700<\/a>\u00a0(Part 2). Debra Fischer (Yale University) public talk in Hawaii sponsored by the Keck Observatory (15:20 Part 1, 21:32 Part 2).<\/p>\n<p id=\"fs-id1163976540998\">Search for Habitable Exoplanets:\u00a0<a href=\"http:\/\/www.youtube.com\/watch?v=RLWb_T9yaDU\" target=\"_blank\" rel=\"noopener nofollow noreferrer\">http:\/\/www.youtube.com\/watch?v=RLWb_T9yaDU<\/a>. Sara Seeger (MIT) public talk at the SETI Institute, with Kepler results (1:10:35).<\/p>\n<\/section>\n<\/div>\n<div class=\"textbox\">This book was adapted from the following: Fraknoi, A., Morrison, D., &amp; Wolff, S. C. (2016). For Further Exploration In <i>Astronomy<\/i>. OpenStax. https:\/\/openstax.org\/books\/astronomy\/pages\/21-for-further-exploration under a <a href=\"http:\/\/creativecommons.org\/licenses\/by\/4.0\/\" target=\"_blank\" rel=\"noopener noreferrer\">Creative Commons Attribution License 4.0<\/a><\/div>\n<div>Access the entire book for free at\u00a0<a href=\"https:\/\/openstax.org\/books\/astronomy\/pages\/1-introduction\">https:\/\/openstax.org\/books\/astronomy\/pages\/1-introduction<\/a><\/div>\n","protected":false},"author":33,"menu_order":11,"template":"","meta":{"pb_show_title":"on","pb_short_title":"","pb_subtitle":"","pb_authors":[],"pb_section_license":""},"chapter-type":[48],"contributor":[],"license":[],"class_list":["post-647","chapter","type-chapter","status-publish","hentry","chapter-type-numberless"],"part":628,"_links":{"self":[{"href":"https:\/\/pressbooks.ccconline.org\/astronomy\/wp-json\/pressbooks\/v2\/chapters\/647","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pressbooks.ccconline.org\/astronomy\/wp-json\/pressbooks\/v2\/chapters"}],"about":[{"href":"https:\/\/pressbooks.ccconline.org\/astronomy\/wp-json\/wp\/v2\/types\/chapter"}],"author":[{"embeddable":true,"href":"https:\/\/pressbooks.ccconline.org\/astronomy\/wp-json\/wp\/v2\/users\/33"}],"version-history":[{"count":1,"href":"https:\/\/pressbooks.ccconline.org\/astronomy\/wp-json\/pressbooks\/v2\/chapters\/647\/revisions"}],"predecessor-version":[{"id":648,"href":"https:\/\/pressbooks.ccconline.org\/astronomy\/wp-json\/pressbooks\/v2\/chapters\/647\/revisions\/648"}],"part":[{"href":"https:\/\/pressbooks.ccconline.org\/astronomy\/wp-json\/pressbooks\/v2\/parts\/628"}],"metadata":[{"href":"https:\/\/pressbooks.ccconline.org\/astronomy\/wp-json\/pressbooks\/v2\/chapters\/647\/metadata\/"}],"wp:attachment":[{"href":"https:\/\/pressbooks.ccconline.org\/astronomy\/wp-json\/wp\/v2\/media?parent=647"}],"wp:term":[{"taxonomy":"chapter-type","embeddable":true,"href":"https:\/\/pressbooks.ccconline.org\/astronomy\/wp-json\/pressbooks\/v2\/chapter-type?post=647"},{"taxonomy":"contributor","embeddable":true,"href":"https:\/\/pressbooks.ccconline.org\/astronomy\/wp-json\/wp\/v2\/contributor?post=647"},{"taxonomy":"license","embeddable":true,"href":"https:\/\/pressbooks.ccconline.org\/astronomy\/wp-json\/wp\/v2\/license?post=647"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}