{"id":713,"date":"2022-03-02T20:43:53","date_gmt":"2022-03-02T20:43:53","guid":{"rendered":"https:\/\/pressbooks.ccconline.org\/astronomy\/?post_type=chapter&#038;p=713"},"modified":"2022-03-02T20:44:19","modified_gmt":"2022-03-02T20:44:19","slug":"713","status":"publish","type":"chapter","link":"https:\/\/pressbooks.ccconline.org\/astronomy\/chapter\/713\/","title":{"raw":"For Further Exploration","rendered":"For Further Exploration"},"content":{"raw":"<section id=\"fs-id1168047534614\" data-depth=\"2\">\r\n<h4 data-type=\"title\">Articles<\/h4>\r\n<section id=\"fs-id1168047718834\" data-depth=\"3\">\r\n<h5 data-type=\"title\"><em data-effect=\"italics\">Black Holes<\/em><\/h5>\r\n<p id=\"fs-id1168047276174\">Charles, P. &amp; Wagner, R. \u201cBlack Holes in Binary Stars: Weighing the Evidence.\u201d\u00a0<em data-effect=\"italics\">Sky &amp; Telescope<\/em>\u00a0(May 1996): 38. Excellent review of how we find stellar-mass black holes.<\/p>\r\n<p id=\"fs-id1168047596546\">Gezari, S. \u201cStar-Shredding Black Holes.\u201d\u00a0<em data-effect=\"italics\">Sky &amp; Telescope<\/em>\u00a0(June 2013): 16. When black holes and stars collide.<\/p>\r\n<p id=\"fs-id1168047747052\">Jayawardhana, R. \u201cBeyond Black.\u201d\u00a0<em data-effect=\"italics\">Astronomy<\/em>\u00a0(June 2002): 28. On finding evidence of the existence of event horizons and thus black holes.<\/p>\r\n<p id=\"fs-id1168047680238\">Nadis, S. \u201cBlack Holes: Seeing the Unseeable.\u201d\u00a0<em data-effect=\"italics\">Astronomy<\/em>\u00a0(April 2007): 26. A brief history of the black hole idea and an introduction to potential new ways to observe them.<\/p>\r\n<p id=\"fs-id1168047380119\">Psallis, D. &amp; Sheperd, D. \u201cThe Black Hole Test.\u201d\u00a0<em data-effect=\"italics\">Scientific American<\/em>\u00a0(September 2015): 74\u201379. The Event Horizon Telescope (a network of radio telescopes) will test some of the stranger predictions of general relativity for the regions near black holes. The September 2015 issue of\u00a0<em data-effect=\"italics\">Scientific American<\/em>\u00a0was devoted to a celebration of the 100th anniversary of the general theory of relativity.<\/p>\r\n<p id=\"fs-id1168047335455\">Rees, M. \u201cTo the Edge of Space and Time.\u201d\u00a0<em data-effect=\"italics\">Astronomy<\/em>\u00a0(July 1998): 48. Good, quick overview.<\/p>\r\n<p id=\"fs-id1168047291833\">Talcott, R. \u201cBlack Holes in our Backyard.\u201d\u00a0<em data-effect=\"italics\">Astronomy<\/em>\u00a0(September 2012): 44. Discussion of different kinds of black holes in the Milky Way and the 19 objects known to be black holes.<\/p>\r\n\r\n<\/section><section id=\"fs-id1168047345302\" data-depth=\"3\">\r\n<h5 data-type=\"title\"><em data-effect=\"italics\">Gravitational Waves<\/em><\/h5>\r\n<p id=\"fs-id1168047299549\">Bartusiak, M. \u201cCatch a Gravity Wave.\u201d\u00a0<em data-effect=\"italics\">Astronomy<\/em>\u00a0(October 2000): 54.<\/p>\r\n<p id=\"fs-id1168047337904\">Gibbs, W. \u201cRipples in Spacetime.\u201d\u00a0<em data-effect=\"italics\">Scientific American<\/em>\u00a0(April 2002): 62.<\/p>\r\n<p id=\"fs-id1168047400878\">Haynes, K., &amp; Betz, E. \u201cA Wrinkle in Spacetime Confirms Einstein\u2019s Gravitation.\u201d\u00a0<em data-effect=\"italics\">Astronomy<\/em>\u00a0(May 2016): 22. On the direct detection of gravity waves.<\/p>\r\n<p id=\"fs-id1168047379136\">Sanders, G., and Beckett, D. \u201cLIGO: An Antenna Tuned to the Songs of Gravity.\u201d\u00a0<em data-effect=\"italics\">Sky &amp; Telescope<\/em>\u00a0(October 2000): 41.<\/p>\r\n\r\n<\/section><\/section><section id=\"fs-id1168048219307\" data-depth=\"2\">\r\n<h4 data-type=\"title\">Websites<\/h4>\r\n<section id=\"fs-id1168047738399\" data-depth=\"3\">\r\n<h5 data-type=\"title\"><em data-effect=\"italics\">Black Holes<\/em><\/h5>\r\n<p id=\"fs-id1168047384979\">Black Hole Encyclopedia:\u00a0<a href=\"http:\/\/blackholes.stardate.org\/\" target=\"_blank\" rel=\"noopener nofollow noreferrer\">http:\/\/blackholes.stardate.org<\/a>. From StarDate at the University of Texas McDonald Observatory.<\/p>\r\n<p id=\"fs-id1168047646306\">Black Holes:\u00a0<a href=\"http:\/\/science.nasa.gov\/astrophysics\/focus-areas\/black-holes\" target=\"_blank\" rel=\"noopener nofollow noreferrer\">http:\/\/science.nasa.gov\/astrophysics\/focus-areas\/black-holes<\/a>. NASA overview of black holes, along with links to the most recent news and discoveries.<\/p>\r\n<p id=\"jd-2939823492389423\">Introduction to Black Holes:\u00a0<a href=\"https:\/\/www.newscientist.com\/article\/dn18348-introduction-black-holes\/\" target=\"_blank\" rel=\"noopener nofollow noreferrer\">https:\/\/www.newscientist.com\/article\/dn18348-introduction-black-holes\/<\/a>. Basic information from New Scientist magazine.<\/p>\r\n<p id=\"fs-id1168048145976\">Virtual Trips into Black Holes and Neutron Stars:\u00a0<a href=\"http:\/\/antwrp.gsfc.nasa.gov\/htmltest\/rjn_bht.html\" target=\"_blank\" rel=\"noopener nofollow noreferrer\">http:\/\/antwrp.gsfc.nasa.gov\/htmltest\/rjn_bht.html<\/a>. By Robert Nemiroff at Michigan Technological University.<\/p>\r\n\r\n<\/section><section id=\"fs-id1168047210335\" data-depth=\"3\">\r\n<h5 data-type=\"title\"><em data-effect=\"italics\">Gravitational Waves<\/em><\/h5>\r\n<p id=\"fs-id1168047793930\">Advanced LIGO:\u00a0<a href=\"https:\/\/www.advancedligo.mit.edu\/\" target=\"_blank\" rel=\"noopener nofollow noreferrer\">https:\/\/www.advancedligo.mit.edu<\/a>. The full story on this gravitational wave observatory.<\/p>\r\n<p id=\"fs-id1168047698801\">eLISA:\u00a0<a href=\"https:\/\/www.elisascience.org\/\" target=\"_blank\" rel=\"noopener nofollow noreferrer\">https:\/\/www.elisascience.org<\/a>.<\/p>\r\n<p id=\"fs-id1168047134505\">Gravitational Waves Detected, Confirming Einstein\u2019s Theory:\u00a0<a href=\"http:\/\/www.nytimes.com\/2016\/02\/12\/science\/ligo-gravitational-waves-black-holes-einstein.html\" target=\"_blank\" rel=\"noopener nofollow noreferrer\">http:\/\/www.nytimes.com\/2016\/02\/12\/science\/ligo-gravitational-waves-black-holes-einstein.html<\/a>.\u00a0<em data-effect=\"italics\">New York Times<\/em>\u00a0article and videos on the discovery of gravitational waves.<\/p>\r\n<p id=\"fs-id1168047696508\">Gravitational Waves Discovered from Colliding Black Holes:\u00a0<a href=\"http:\/\/www.scientificamerican.com\/article\/gravitational-waves-discovered-from-colliding-black-holes1\" target=\"_blank\" rel=\"noopener nofollow noreferrer\">http:\/\/www.scientificamerican.com\/article\/gravitational-waves-discovered-from-colliding-black-holes1<\/a>.\u00a0<em data-effect=\"italics\">Scientific American<\/em>\u00a0coverage of the discovery of gravitational waves (note the additional materials available in the menu at the right).<\/p>\r\n<p id=\"fs-id1168047947117\">LIGO Caltech:\u00a0<a href=\"https:\/\/www.ligo.caltech.edu\/\" target=\"_blank\" rel=\"noopener nofollow noreferrer\">https:\/\/www.ligo.caltech.edu<\/a>.<\/p>\r\n\r\n<\/section><\/section><section id=\"fs-id1168047912717\" data-depth=\"2\">\r\n<h4 data-type=\"title\">Videos<\/h4>\r\n<section id=\"fs-id1168047340886\" data-depth=\"3\">\r\n<h5 data-type=\"title\"><em data-effect=\"italics\">Black Holes<\/em><\/h5>\r\n<p id=\"fs-id1168047358835\">Black Holes: The End of Time or a New Beginning?:\u00a0<a href=\"https:\/\/www.youtube.com\/watch?v=mgtJRsdKe6Q\" target=\"_blank\" rel=\"noopener nofollow noreferrer\">https:\/\/www.youtube.com\/watch?v=mgtJRsdKe6Q<\/a>. 2012 Silicon Valley Astronomy Lecture by Roger Blandford (1:29:52).<\/p>\r\n<p id=\"fs-id1168047643082\">Death by Black Hole:\u00a0<a href=\"https:\/\/www.youtube.com\/watch?v=h1iJXOUMJpg\" target=\"_blank\" rel=\"noopener nofollow noreferrer\">https:\/\/www.youtube.com\/watch?v=h1iJXOUMJpg<\/a>. Neil deGrasse Tyson explains spaghettification with only his hands (5:34).<\/p>\r\n<p id=\"fs-id1168047793804\">Hearts of Darkness: Black Holes in Space:\u00a0<a href=\"https:\/\/www.youtube.com\/watch?v=4tiAOldypLk\" target=\"_blank\" rel=\"noopener nofollow noreferrer\">https:\/\/www.youtube.com\/watch?v=4tiAOldypLk<\/a>. 2010 Silicon Valley Astronomy Lecture by Alex Filippenko (1:56:11).<\/p>\r\n\r\n<\/section><section id=\"fs-id1168047357205\" data-depth=\"3\">\r\n<h5 data-type=\"title\"><em data-effect=\"italics\">Gravitational Waves<\/em><\/h5>\r\n<p id=\"fs-id1168047964232\">Journey of a Gravitational Wave:\u00a0<a href=\"https:\/\/www.youtube.com\/watch?v=FlDtXIBrAYE\" target=\"_blank\" rel=\"noopener nofollow noreferrer\">https:\/\/www.youtube.com\/watch?v=FlDtXIBrAYE<\/a>. Introduction from LIGO Caltech (2:55).<\/p>\r\n<p id=\"fs-id1168047727447\">LIGO\u2019s First Detection of Gravitational Waves:\u00a0<a href=\"https:\/\/www.youtube.com\/watch?v=gw-i_VKd6Wo\" target=\"_blank\" rel=\"noopener nofollow noreferrer\">https:\/\/www.youtube.com\/watch?v=gw-i_VKd6Wo<\/a>. Explanation and animations from PBS Digital Studio (9:31).<\/p>\r\n<p id=\"fs-id1168047352871\">Two Black Holes Merge into One:\u00a0<a href=\"https:\/\/www.youtube.com\/watch?v=I_88S8DWbcU\" target=\"_blank\" rel=\"noopener nofollow noreferrer\">https:\/\/www.youtube.com\/watch?v=I_88S8DWbcU<\/a>. Simulation from LIGO Caltech (0:35).<\/p>\r\n<p id=\"fs-id1168047606428\">What the Discovery of Gravitational Waves Means:\u00a0<a href=\"https:\/\/www.youtube.com\/watch?v=jMVAgCPYYHY\" target=\"_blank\" rel=\"noopener nofollow noreferrer\">https:\/\/www.youtube.com\/watch?v=jMVAgCPYYHY<\/a>. TED Talk by Allan Adams (10:58).<\/p>\r\n\r\n<\/section><\/section>\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\/24-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":"<section id=\"fs-id1168047534614\" data-depth=\"2\">\n<h4 data-type=\"title\">Articles<\/h4>\n<section id=\"fs-id1168047718834\" data-depth=\"3\">\n<h5 data-type=\"title\"><em data-effect=\"italics\">Black Holes<\/em><\/h5>\n<p id=\"fs-id1168047276174\">Charles, P. &amp; Wagner, R. \u201cBlack Holes in Binary Stars: Weighing the Evidence.\u201d\u00a0<em data-effect=\"italics\">Sky &amp; Telescope<\/em>\u00a0(May 1996): 38. Excellent review of how we find stellar-mass black holes.<\/p>\n<p id=\"fs-id1168047596546\">Gezari, S. \u201cStar-Shredding Black Holes.\u201d\u00a0<em data-effect=\"italics\">Sky &amp; Telescope<\/em>\u00a0(June 2013): 16. When black holes and stars collide.<\/p>\n<p id=\"fs-id1168047747052\">Jayawardhana, R. \u201cBeyond Black.\u201d\u00a0<em data-effect=\"italics\">Astronomy<\/em>\u00a0(June 2002): 28. On finding evidence of the existence of event horizons and thus black holes.<\/p>\n<p id=\"fs-id1168047680238\">Nadis, S. \u201cBlack Holes: Seeing the Unseeable.\u201d\u00a0<em data-effect=\"italics\">Astronomy<\/em>\u00a0(April 2007): 26. A brief history of the black hole idea and an introduction to potential new ways to observe them.<\/p>\n<p id=\"fs-id1168047380119\">Psallis, D. &amp; Sheperd, D. \u201cThe Black Hole Test.\u201d\u00a0<em data-effect=\"italics\">Scientific American<\/em>\u00a0(September 2015): 74\u201379. The Event Horizon Telescope (a network of radio telescopes) will test some of the stranger predictions of general relativity for the regions near black holes. The September 2015 issue of\u00a0<em data-effect=\"italics\">Scientific American<\/em>\u00a0was devoted to a celebration of the 100th anniversary of the general theory of relativity.<\/p>\n<p id=\"fs-id1168047335455\">Rees, M. \u201cTo the Edge of Space and Time.\u201d\u00a0<em data-effect=\"italics\">Astronomy<\/em>\u00a0(July 1998): 48. Good, quick overview.<\/p>\n<p id=\"fs-id1168047291833\">Talcott, R. \u201cBlack Holes in our Backyard.\u201d\u00a0<em data-effect=\"italics\">Astronomy<\/em>\u00a0(September 2012): 44. Discussion of different kinds of black holes in the Milky Way and the 19 objects known to be black holes.<\/p>\n<\/section>\n<section id=\"fs-id1168047345302\" data-depth=\"3\">\n<h5 data-type=\"title\"><em data-effect=\"italics\">Gravitational Waves<\/em><\/h5>\n<p id=\"fs-id1168047299549\">Bartusiak, M. \u201cCatch a Gravity Wave.\u201d\u00a0<em data-effect=\"italics\">Astronomy<\/em>\u00a0(October 2000): 54.<\/p>\n<p id=\"fs-id1168047337904\">Gibbs, W. \u201cRipples in Spacetime.\u201d\u00a0<em data-effect=\"italics\">Scientific American<\/em>\u00a0(April 2002): 62.<\/p>\n<p id=\"fs-id1168047400878\">Haynes, K., &amp; Betz, E. \u201cA Wrinkle in Spacetime Confirms Einstein\u2019s Gravitation.\u201d\u00a0<em data-effect=\"italics\">Astronomy<\/em>\u00a0(May 2016): 22. On the direct detection of gravity waves.<\/p>\n<p id=\"fs-id1168047379136\">Sanders, G., and Beckett, D. \u201cLIGO: An Antenna Tuned to the Songs of Gravity.\u201d\u00a0<em data-effect=\"italics\">Sky &amp; Telescope<\/em>\u00a0(October 2000): 41.<\/p>\n<\/section>\n<\/section>\n<section id=\"fs-id1168048219307\" data-depth=\"2\">\n<h4 data-type=\"title\">Websites<\/h4>\n<section id=\"fs-id1168047738399\" data-depth=\"3\">\n<h5 data-type=\"title\"><em data-effect=\"italics\">Black Holes<\/em><\/h5>\n<p id=\"fs-id1168047384979\">Black Hole Encyclopedia:\u00a0<a href=\"http:\/\/blackholes.stardate.org\/\" target=\"_blank\" rel=\"noopener nofollow noreferrer\">http:\/\/blackholes.stardate.org<\/a>. From StarDate at the University of Texas McDonald Observatory.<\/p>\n<p id=\"fs-id1168047646306\">Black Holes:\u00a0<a href=\"http:\/\/science.nasa.gov\/astrophysics\/focus-areas\/black-holes\" target=\"_blank\" rel=\"noopener nofollow noreferrer\">http:\/\/science.nasa.gov\/astrophysics\/focus-areas\/black-holes<\/a>. NASA overview of black holes, along with links to the most recent news and discoveries.<\/p>\n<p id=\"jd-2939823492389423\">Introduction to Black Holes:\u00a0<a href=\"https:\/\/www.newscientist.com\/article\/dn18348-introduction-black-holes\/\" target=\"_blank\" rel=\"noopener nofollow noreferrer\">https:\/\/www.newscientist.com\/article\/dn18348-introduction-black-holes\/<\/a>. Basic information from New Scientist magazine.<\/p>\n<p id=\"fs-id1168048145976\">Virtual Trips into Black Holes and Neutron Stars:\u00a0<a href=\"http:\/\/antwrp.gsfc.nasa.gov\/htmltest\/rjn_bht.html\" target=\"_blank\" rel=\"noopener nofollow noreferrer\">http:\/\/antwrp.gsfc.nasa.gov\/htmltest\/rjn_bht.html<\/a>. By Robert Nemiroff at Michigan Technological University.<\/p>\n<\/section>\n<section id=\"fs-id1168047210335\" data-depth=\"3\">\n<h5 data-type=\"title\"><em data-effect=\"italics\">Gravitational Waves<\/em><\/h5>\n<p id=\"fs-id1168047793930\">Advanced LIGO:\u00a0<a href=\"https:\/\/www.advancedligo.mit.edu\/\" target=\"_blank\" rel=\"noopener nofollow noreferrer\">https:\/\/www.advancedligo.mit.edu<\/a>. The full story on this gravitational wave observatory.<\/p>\n<p id=\"fs-id1168047698801\">eLISA:\u00a0<a href=\"https:\/\/www.elisascience.org\/\" target=\"_blank\" rel=\"noopener nofollow noreferrer\">https:\/\/www.elisascience.org<\/a>.<\/p>\n<p id=\"fs-id1168047134505\">Gravitational Waves Detected, Confirming Einstein\u2019s Theory:\u00a0<a href=\"http:\/\/www.nytimes.com\/2016\/02\/12\/science\/ligo-gravitational-waves-black-holes-einstein.html\" target=\"_blank\" rel=\"noopener nofollow noreferrer\">http:\/\/www.nytimes.com\/2016\/02\/12\/science\/ligo-gravitational-waves-black-holes-einstein.html<\/a>.\u00a0<em data-effect=\"italics\">New York Times<\/em>\u00a0article and videos on the discovery of gravitational waves.<\/p>\n<p id=\"fs-id1168047696508\">Gravitational Waves Discovered from Colliding Black Holes:\u00a0<a href=\"http:\/\/www.scientificamerican.com\/article\/gravitational-waves-discovered-from-colliding-black-holes1\" target=\"_blank\" rel=\"noopener nofollow noreferrer\">http:\/\/www.scientificamerican.com\/article\/gravitational-waves-discovered-from-colliding-black-holes1<\/a>.\u00a0<em data-effect=\"italics\">Scientific American<\/em>\u00a0coverage of the discovery of gravitational waves (note the additional materials available in the menu at the right).<\/p>\n<p id=\"fs-id1168047947117\">LIGO Caltech:\u00a0<a href=\"https:\/\/www.ligo.caltech.edu\/\" target=\"_blank\" rel=\"noopener nofollow noreferrer\">https:\/\/www.ligo.caltech.edu<\/a>.<\/p>\n<\/section>\n<\/section>\n<section id=\"fs-id1168047912717\" data-depth=\"2\">\n<h4 data-type=\"title\">Videos<\/h4>\n<section id=\"fs-id1168047340886\" data-depth=\"3\">\n<h5 data-type=\"title\"><em data-effect=\"italics\">Black Holes<\/em><\/h5>\n<p id=\"fs-id1168047358835\">Black Holes: The End of Time or a New Beginning?:\u00a0<a href=\"https:\/\/www.youtube.com\/watch?v=mgtJRsdKe6Q\" target=\"_blank\" rel=\"noopener nofollow noreferrer\">https:\/\/www.youtube.com\/watch?v=mgtJRsdKe6Q<\/a>. 2012 Silicon Valley Astronomy Lecture by Roger Blandford (1:29:52).<\/p>\n<p id=\"fs-id1168047643082\">Death by Black Hole:\u00a0<a href=\"https:\/\/www.youtube.com\/watch?v=h1iJXOUMJpg\" target=\"_blank\" rel=\"noopener nofollow noreferrer\">https:\/\/www.youtube.com\/watch?v=h1iJXOUMJpg<\/a>. Neil deGrasse Tyson explains spaghettification with only his hands (5:34).<\/p>\n<p id=\"fs-id1168047793804\">Hearts of Darkness: Black Holes in Space:\u00a0<a href=\"https:\/\/www.youtube.com\/watch?v=4tiAOldypLk\" target=\"_blank\" rel=\"noopener nofollow noreferrer\">https:\/\/www.youtube.com\/watch?v=4tiAOldypLk<\/a>. 2010 Silicon Valley Astronomy Lecture by Alex Filippenko (1:56:11).<\/p>\n<\/section>\n<section id=\"fs-id1168047357205\" data-depth=\"3\">\n<h5 data-type=\"title\"><em data-effect=\"italics\">Gravitational Waves<\/em><\/h5>\n<p id=\"fs-id1168047964232\">Journey of a Gravitational Wave:\u00a0<a href=\"https:\/\/www.youtube.com\/watch?v=FlDtXIBrAYE\" target=\"_blank\" rel=\"noopener nofollow noreferrer\">https:\/\/www.youtube.com\/watch?v=FlDtXIBrAYE<\/a>. Introduction from LIGO Caltech (2:55).<\/p>\n<p id=\"fs-id1168047727447\">LIGO\u2019s First Detection of Gravitational Waves:\u00a0<a href=\"https:\/\/www.youtube.com\/watch?v=gw-i_VKd6Wo\" target=\"_blank\" rel=\"noopener nofollow noreferrer\">https:\/\/www.youtube.com\/watch?v=gw-i_VKd6Wo<\/a>. Explanation and animations from PBS Digital Studio (9:31).<\/p>\n<p id=\"fs-id1168047352871\">Two Black Holes Merge into One:\u00a0<a href=\"https:\/\/www.youtube.com\/watch?v=I_88S8DWbcU\" target=\"_blank\" rel=\"noopener nofollow noreferrer\">https:\/\/www.youtube.com\/watch?v=I_88S8DWbcU<\/a>. Simulation from LIGO Caltech (0:35).<\/p>\n<p id=\"fs-id1168047606428\">What the Discovery of Gravitational Waves Means:\u00a0<a href=\"https:\/\/www.youtube.com\/watch?v=jMVAgCPYYHY\" target=\"_blank\" rel=\"noopener nofollow noreferrer\">https:\/\/www.youtube.com\/watch?v=jMVAgCPYYHY<\/a>. TED Talk by Allan Adams (10:58).<\/p>\n<\/section>\n<\/section>\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\/24-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":10,"template":"","meta":{"pb_show_title":"on","pb_short_title":"","pb_subtitle":"","pb_authors":[],"pb_section_license":""},"chapter-type":[48],"contributor":[],"license":[],"class_list":["post-713","chapter","type-chapter","status-publish","hentry","chapter-type-numberless"],"part":689,"_links":{"self":[{"href":"https:\/\/pressbooks.ccconline.org\/astronomy\/wp-json\/pressbooks\/v2\/chapters\/713","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":2,"href":"https:\/\/pressbooks.ccconline.org\/astronomy\/wp-json\/pressbooks\/v2\/chapters\/713\/revisions"}],"predecessor-version":[{"id":715,"href":"https:\/\/pressbooks.ccconline.org\/astronomy\/wp-json\/pressbooks\/v2\/chapters\/713\/revisions\/715"}],"part":[{"href":"https:\/\/pressbooks.ccconline.org\/astronomy\/wp-json\/pressbooks\/v2\/parts\/689"}],"metadata":[{"href":"https:\/\/pressbooks.ccconline.org\/astronomy\/wp-json\/pressbooks\/v2\/chapters\/713\/metadata\/"}],"wp:attachment":[{"href":"https:\/\/pressbooks.ccconline.org\/astronomy\/wp-json\/wp\/v2\/media?parent=713"}],"wp:term":[{"taxonomy":"chapter-type","embeddable":true,"href":"https:\/\/pressbooks.ccconline.org\/astronomy\/wp-json\/pressbooks\/v2\/chapter-type?post=713"},{"taxonomy":"contributor","embeddable":true,"href":"https:\/\/pressbooks.ccconline.org\/astronomy\/wp-json\/wp\/v2\/contributor?post=713"},{"taxonomy":"license","embeddable":true,"href":"https:\/\/pressbooks.ccconline.org\/astronomy\/wp-json\/wp\/v2\/license?post=713"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}