{"id":213365,"date":"2025-05-06T13:13:11","date_gmt":"2025-05-06T18:13:11","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2025\/05\/magnetic-fields-can-map-the-universe-heres-how"},"modified":"2025-05-06T13:13:11","modified_gmt":"2025-05-06T18:13:11","slug":"magnetic-fields-can-map-the-universe-heres-how","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2025\/05\/magnetic-fields-can-map-the-universe-heres-how","title":{"rendered":"Magnetic fields can map the universe\u2014here\u2019s how"},"content":{"rendered":"<p><a class=\"aligncenter blog-photo\" href=\"https:\/\/lifeboat.com\/blog.images\/magnetic-fields-can-map-the-universe-heres-how.webp\"><\/a><\/p>\n<p>Who knew that magnetic fields could be so useful? Astronomers are able to use magnetic fields to map our environment within the Milky Way using a technique called Faraday rotation.<\/p>\n<p>It works like this. There\u2019s a bunch of dust\u2014literal dust grains\u2014floating within the galaxy.<\/p>\n<p>Well, I say there\u2019s a lot of dust, but it\u2019s at very, very low densities. Thankfully, the volumes within interstellar space are so vast that the total amount of dust can really add up. And all these little dust grains have little magnetic fields associated with them, because all the grains are made of electric charges and they\u2019re spinning around themselves.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Who knew that magnetic fields could be so useful? Astronomers are able to use magnetic fields to map our environment within the Milky Way using a technique called Faraday rotation. It works like this. There\u2019s a bunch of dust\u2014literal dust grains\u2014floating within the galaxy. Well, I say there\u2019s a lot of dust, but it\u2019s at [\u2026]<\/p>\n","protected":false},"author":707,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[],"class_list":["post-213365","post","type-post","status-publish","format-standard","hentry","category-space"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/213365","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/users\/707"}],"replies":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/comments?post=213365"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/213365\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=213365"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=213365"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=213365"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}