Daily Current Affairs Quiz 2019<\/a><\/strong><\/p>\n\n\n\nGamma rays are created when electrically charged cosmic rays\n\u2014 protons accelerated by supernovae or jets produced by matter sucked into\nblack holes \u2014 interact with matter, such as the surface of the moon.<\/p>\n\n\n\n
They\u2019re the most deadly type of EM radiation for living\norganisms. Luckily, they\u2019re largely absorbed by Earth\u2019s atmosphere.<\/p>\n\n\n\n
However, on the moon, most of the gamma-ray radiation\nproduced is absorbed by Earth\u2019s natural satellite. Meanwhile, the sun only\nproduces a fraction of its electromagnetic radiation in gamma rays \u2014 much less\nthan the moon \u2014 because it has a very powerful magnetic field.<\/p>\n\n\n\n
You can\u2019t see gamma rays with the naked eye, but that\u2019s\nwhere the Fermi Telescope comes in.<\/p>\n\n\n\n
In a recent study, astronomers have calculated that the\nmoon\u2019s gamma rays can exceed 31 million electron volts, or 10 million times\nmore powerful than visible light.<\/p>\n\n\n\n
This brightness isn\u2019t constant, though. Fermi LAT data show\nthat the Moon\u2019s brightness varies by about 20% over the Sun\u2019s 11-year activity\ncycle.<\/p>\n\n\n\n
Although the moon is much brighter in gamma rays than the\nsun, occasionally cosmic rays will strike the dense part of the sun\u2019s\natmosphere, resulting in gamma rays above one billion electron volts. In this\nrange, the sun is actually brighter.<\/p>\n\n\n\n
The findings suggest that astronauts visiting the moon or\nliving there over extended periods in a lunar outpost would be a great risk.\nGamma rays and cosmic rays have a great penetrating power, which means\nshielding using elements such as lead is paramount.<\/p>\n\n\n\n
NASA plans on sending humans back to the moon in 2024 as\npart of its Artemis program. Before that happens, we will have to be prepared\nfor the threat of radiation exposure.<\/p>\n\n\n\n
What is Gamma ray ? <\/strong>A gamma ray, or gamma radiation, is a penetrating electromagnetic radiation arising from the radioactive decay of atomic nuclei. It consists of the shortest wavelength electromagnetic waves and so imparts the highest photon energy. <\/p>\n","protected":false},"excerpt":{"rendered":"Cosmic rays are the high-energy radiation that comes from outside our solar system produced by things like supernovae and active galactic nuclei (AGN). They are nothing but protons accelerating through the universe, like blasts of waves of exploding stars. When these electrically-charged particles strike matter, say, the lunar surface, they turn into gamma rays. Daily […]<\/p>\n","protected":false},"author":13,"featured_media":5032,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[45],"tags":[516,517],"class_list":["post-5031","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-current-affairs-articles","tag-moon","tag-sun"],"_links":{"self":[{"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/posts\/5031","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/users\/13"}],"replies":[{"embeddable":true,"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/comments?post=5031"}],"version-history":[{"count":1,"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/posts\/5031\/revisions"}],"predecessor-version":[{"id":5033,"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/posts\/5031\/revisions\/5033"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/media\/5032"}],"wp:attachment":[{"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/media?parent=5031"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/categories?post=5031"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/tags?post=5031"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}