{"date":"2026-09-14","explanation":"The hydrogen in your body and present in eve ry molecule of water came from the Big Bang. There are no other appreciable sou rces of hydrogen in the universe. The carbon in your body was made by nuclear f usion in the interior of stars, as was the oxygen. Much of the iron in your bod y was made during supernovas of stars that occurred long ago and far away. The gold in your jewelry was likely made from neutron stars during collisions that m ay have been visible as short-duration gamma-ray bursts or gravitational wave ev ents. Elements like phosphorus and copper are present in our bodies in only smal l amounts but are essential to the functioning of all known life. The featured periodic table is color coded to indicate humanity's best guess as to the nuclea r origin of all known elements. The sites of nuclear creation of some elements, such as copper, are not really well known and are continuing topics of observat ional and computational research. APOD's main NASA site is moving: From apod.n asa.gov to science.nasa.gov\/apod","hdurl":"https:\/\/apod.nasa.gov\/apod\/image \/2609\/ElementOrigins2_svs_6000.jpg","media_type":"image","service_version":"v1 ","title":"Where Your Elements Came From","url":"https:\/\/apod.nasa.gov\/apod\/ image\/2609\/ElementOrigins2_svs_1080.jpg"}
