{"id":116505,"date":"2026-08-01T16:23:31","date_gmt":"2026-08-01T10:53:31","guid":{"rendered":"https:\/\/vajiramandravi.com\/current-affairs\/?p=116505"},"modified":"2026-08-01T16:23:31","modified_gmt":"2026-08-01T10:53:31","slug":"artificial-sun","status":"publish","type":"post","link":"https:\/\/vajiramandravi.com\/current-affairs\/artificial-sun\/","title":{"rendered":"Artificial Sun, Nuclear Fusion vs Fission, Tokamak, China\u2019s HL-2M"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">The <\/span><b>Artificial Sun<\/b><span style=\"font-weight: 400;\"> is a term used to describe advanced scientific experiments that try to recreate the <\/span><b>energy of the Sun on Earth<\/b><span style=\"font-weight: 400;\">. Scientists do this using a process called <\/span><b>nuclear fusion<\/b><span style=\"font-weight: 400;\">, where small atoms combine to release a huge amount of <\/span><b>clean energy<\/b><span style=\"font-weight: 400;\">, just like what happens inside the real Sun. The main aim of creating an Artificial Sun is to develop a <\/span><b>safe, sustainable, and pollution-free source of energy<\/b><span style=\"font-weight: 400;\"> for the future. In simple words, it is an effort by humans to bring the <\/span><b>power of the Sun<\/b><span style=\"font-weight: 400;\"> into controlled laboratory conditions to solve the world\u2019s growing energy needs.\u00a0<\/span><\/p>\n<h2><b>Artificial Sun<\/b><\/h2>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The <\/span><b>HL-2M <\/b><a href=\"https:\/\/vajiramandravi.com\/upsc-exam\/tokamak\/\" target=\"_blank\"><b>Tokamak<\/b><\/a><b> reactor<\/b><span style=\"font-weight: 400;\"> is China\u2019s <\/span><b>largest and most advanced nuclear fusion research device<\/b><span style=\"font-weight: 400;\">, developed to explore a powerful source of <\/span><b>clean energy<\/b><span style=\"font-weight: 400;\"> for the future.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">This device works by trying to <\/span><b>replicate the nuclear fusion process<\/b><span style=\"font-weight: 400;\"> that naturally takes place inside the <\/span><b>Sun<\/b><span style=\"font-weight: 400;\">, where energy is produced on a massive scale.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">It uses a <\/span><b>strong magnetic field<\/b><span style=\"font-weight: 400;\"> to control and fuse extremely hot <\/span><b>plasma (fourth state of matter)<\/b><span style=\"font-weight: 400;\">, allowing it to reach temperatures of over <\/span><b>150 million\u00b0C<\/b><span style=\"font-weight: 400;\">, which is about <\/span><b>ten times hotter than the Sun\u2019s core<\/b><span style=\"font-weight: 400;\">.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The reactor is located in <\/span><b>Sichuan province, China<\/b><span style=\"font-weight: 400;\">, and is often called an <\/span><b>\u201cArtificial Sun\u201d<\/b><span style=\"font-weight: 400;\"> because it produces <\/span><b>immense heat and energy<\/b><span style=\"font-weight: 400;\"> similar to the Sun.<\/span><\/li>\n<\/ul>\n<h2><b>Other Similar Experiment<\/b><\/h2>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The <\/span><b>International Thermonuclear Experimental Reactor (ITER)<\/b><span style=\"font-weight: 400;\"> is a major global project involving <\/span><b>35 countries<\/b><span style=\"font-weight: 400;\">, launched in <\/span><b>1985<\/b><span style=\"font-weight: 400;\">.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">It is located in <\/span><b>France<\/b><span style=\"font-weight: 400;\"> and aims to build the <\/span><b>world\u2019s largest tokamak reactor<\/b><span style=\"font-weight: 400;\">.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The main goal of ITER is to prove that <\/span><b>nuclear fusion can be used as a large-scale, carbon-free energy source<\/b><span style=\"font-weight: 400;\">.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">A <\/span><b>tokamak<\/b><span style=\"font-weight: 400;\"> is a special experimental machine designed to <\/span><b>harness fusion energy<\/b><span style=\"font-weight: 400;\">. The heat produced during fusion is absorbed by the reactor walls and then used to generate <\/span><b>steam, turbines, and electricity<\/b><span style=\"font-weight: 400;\">, similar to a conventional power plant.<\/span><\/li>\n<\/ul>\n<h2><b>Nuclear Fusion vs Nuclear Fission<\/b><\/h2>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Nuclear fission<\/b><span style=\"font-weight: 400;\"> is a process in which <\/span><b>heavy atomic nuclei (e.g., Uranium-235)<\/b><span style=\"font-weight: 400;\"> are split into smaller nuclei, releasing energy. This process is currently used in <\/span><b>nuclear power plants<\/b><span style=\"font-weight: 400;\">, but it produces <\/span><b>radioactive waste<\/b><span style=\"font-weight: 400;\"> and carries risks like <\/span><b>meltdown accidents<\/b><span style=\"font-weight: 400;\">.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Nuclear fusion<\/b><span style=\"font-weight: 400;\"> is the opposite process, where <\/span><b>light nuclei (such as isotopes of hydrogen like deuterium and tritium)<\/b><span style=\"font-weight: 400;\"> combine to form a heavier nucleus (helium), releasing <\/span><b>much larger amounts of energy per reaction<\/b><span style=\"font-weight: 400;\">.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Fusion is considered superior because it produces <\/span><b>minimal long-lived radioactive waste<\/b><span style=\"font-weight: 400;\">, has <\/span><b>lower risk of catastrophic failure<\/b><span style=\"font-weight: 400;\">, and uses <\/span><b>abundant fuel sources (like hydrogen from water)<\/b><span style=\"font-weight: 400;\">.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">However, fusion requires <\/span><b>extreme conditions (temperature, pressure, and confinement)<\/b><span style=\"font-weight: 400;\">, making it far more difficult to achieve and sustain compared to fission.<\/span><\/li>\n<\/ul>\n<p><b>Also Read : <\/b><a href=\"https:\/\/vajiramandravi.com\/upsc-exam\/difference-between-nuclear-fission-and-nuclear-fusion\/\" target=\"_blank\"><b>Difference Between Nuclear Fission and Nuclear Fusion<\/b><\/a><b>\u00a0<\/b><\/p>\n<h2><b>Why Fusion is Difficult on Earth?<\/b><\/h2>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">In stars like the Sun, fusion occurs naturally due to <\/span><b>immense gravitational pressure<\/b><span style=\"font-weight: 400;\">, which forces atomic nuclei close enough to overcome their natural repulsion and fuse together.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">On Earth, since such gravitational forces are absent, scientists must <\/span><b>artificially create similar conditions<\/b><span style=\"font-weight: 400;\"> by heating fuel to <\/span><b>over 100 million\u00b0C<\/b><span style=\"font-weight: 400;\">, increasing particle speed and collision probability.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Even if fusion is initiated, the main difficulty lies in <\/span><b>sustaining the reaction for long durations<\/b><span style=\"font-weight: 400;\">, which is essential for generating continuous energy.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Another major challenge is <\/span><b>energy balance. Scientists<\/b><span style=\"font-weight: 400;\"> must ensure that the energy produced by fusion is <\/span><b>greater than the energy used to initiate and maintain it<\/b><span style=\"font-weight: 400;\">, which is still a work in progress.<\/span><\/li>\n<\/ul>\n<h2><b>Role of Plasma in Fusion<\/b><\/h2>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Plasma<\/b><span style=\"font-weight: 400;\"> is the <\/span><b>fourth state of matter<\/b><span style=\"font-weight: 400;\">, formed when a gas is heated to extremely high temperatures, causing <\/span><b>electrons to separate from atomic nuclei<\/b><span style=\"font-weight: 400;\">, resulting in a collection of charged particles.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Fusion reactions occur only in the <\/span><b>plasma state<\/b><span style=\"font-weight: 400;\">, as particles need to move freely at high speeds to collide and fuse.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Plasma is highly <\/span><b>unstable and turbulent<\/b><span style=\"font-weight: 400;\">, making it extremely difficult to control and confine within a reactor.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">One of the key research goals is achieving <\/span><b>plasma stability and confinement for longer durations<\/b><span style=\"font-weight: 400;\">, which directly impacts the efficiency and feasibility of fusion energy.<\/span><\/li>\n<\/ul>\n<h2><b>Importance of Superconducting Magnets<\/b><\/h2>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The <\/span><b>582-tonne superconducting magnet<\/b><span style=\"font-weight: 400;\"> developed by China is a <\/span><b>core component of a fusion reactor<\/b><span style=\"font-weight: 400;\">, responsible for generating the <\/span><b>strong magnetic fields required to confine plasma<\/b><span style=\"font-weight: 400;\">.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">These magnets create an <\/span><b>invisible magnetic confinement system<\/b><span style=\"font-weight: 400;\">, preventing the plasma from touching the reactor walls, which would otherwise lead to energy loss and structural damage.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The magnet\u2019s large size (about <\/span><b>21 metres in length<\/b><span style=\"font-weight: 400;\">) and high capacity make it one of the <\/span><b>most advanced fusion magnets globally<\/b><span style=\"font-weight: 400;\">, capable of storing <\/span><b>massive magnetic energy<\/b><span style=\"font-weight: 400;\">.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Superconducting magnets are essential because they can <\/span><b>carry extremely high electrical currents with zero resistance<\/b><span style=\"font-weight: 400;\">, enabling the creation of powerful and stable magnetic fields needed for fusion.<\/span><\/li>\n<\/ul>\n<h2><b>What Is a Tokamak?<\/b><\/h2>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">A <\/span><b>tokamak<\/b><span style=\"font-weight: 400;\"> is a <\/span><b>toroidal (doughnut-shaped) fusion reactor<\/b><span style=\"font-weight: 400;\"> that uses a combination of <\/span><b>magnetic fields and electric currents<\/b><span style=\"font-weight: 400;\"> to confine and control plasma.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">It consists of several key components, including <\/span><b>toroidal field magnets, a central solenoid, vacuum chamber, and plasma heating systems<\/b><span style=\"font-weight: 400;\">.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The tokamak design ensures that plasma moves in a <\/span><b>circular path<\/b><span style=\"font-weight: 400;\">, reducing energy loss and increasing the chances of sustained fusion reactions.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The heat generated from fusion is absorbed by the reactor walls and can eventually be used to <\/span><b>produce steam and generate electricity through turbines<\/b><span style=\"font-weight: 400;\">, similar to conventional thermal power plants.<\/span><\/li>\n<\/ul>\n<h2><b>Extreme Temperature Conditions<\/b><\/h2>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Fusion reactors operate under <\/span><b>extreme dual conditions<\/b><span style=\"font-weight: 400;\">, where the plasma core reaches <\/span><b>over 100 million\u00b0C<\/b><span style=\"font-weight: 400;\">, while surrounding superconducting systems are cooled to <\/span><b>-269\u00b0C (near absolute zero)<\/b><span style=\"font-weight: 400;\">.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">This massive temperature difference is managed using <\/span><b>advanced cryogenic systems, vacuum insulation, and heat shielding technologies<\/b><span style=\"font-weight: 400;\">, which prevent heat transfer between components.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Maintaining these conditions requires <\/span><b>precise engineering and continuous monitoring<\/b><span style=\"font-weight: 400;\">, as even small fluctuations can destabilize the system.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">This \u201chot inside, cold outside\u201d setup is one of the <\/span><b>most complex engineering challenges in modern science<\/b><span style=\"font-weight: 400;\">.<\/span><\/li>\n<\/ul>\n<h2><b>China\u2019s Progress in Fusion Research<\/b><\/h2>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">China has made rapid advancements through its <\/span><b>EAST reactor<\/b><span style=\"font-weight: 400;\">, which has achieved <\/span><b>long-duration plasma confinement<\/b><span style=\"font-weight: 400;\">, including maintaining plasma at <\/span><b>100 million\u00b0C for over 1,000 seconds<\/b><span style=\"font-weight: 400;\">.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The development of the <\/span><b>BEST (Burning Plasma Experimental Superconducting Tokamak)<\/b><span style=\"font-weight: 400;\"> represents the next phase, aiming to achieve <\/span><b>self-sustaining fusion reactions (burning plasma)<\/b><span style=\"font-weight: 400;\">.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">China\u2019s approach emphasizes <\/span><b>domestic manufacturing and supply chain control<\/b><span style=\"font-weight: 400;\">, ensuring that critical components like superconductors and magnets are produced within the country.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The long-term goal is to <\/span><b>demonstrate practical fusion electricity generation by around 2030<\/b><span style=\"font-weight: 400;\">, although significant technical hurdles remain.<\/span><\/li>\n<\/ul>\n<h2><b>ITER &#8211; International Fusion Effort<\/b><\/h2>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The <\/span><b>International Thermonuclear Experimental Reactor (ITER)<\/b><span style=\"font-weight: 400;\"> is a <\/span><b>multinational collaboration involving 35 countries<\/b><span style=\"font-weight: 400;\">, including major economies like the US, EU members, China, India, Japan, and Russia.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Located in <\/span><b>France<\/b><span style=\"font-weight: 400;\">, ITER aims to build the <\/span><b>world\u2019s largest tokamak<\/b><span style=\"font-weight: 400;\"> and demonstrate that fusion can produce <\/span><b>more energy than it consumes (positive energy gain)<\/b><span style=\"font-weight: 400;\">.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">ITER is not designed to produce electricity but to serve as a <\/span><b>proof-of-concept reactor<\/b><span style=\"font-weight: 400;\">, paving the way for future commercial fusion power plants.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The project represents <\/span><b>global scientific cooperation<\/b><span style=\"font-weight: 400;\">, combining expertise, technology, and funding to tackle one of the most complex challenges in energy science.<\/span><\/li>\n<\/ul>\n<h2><b>Why Fusion Is the Future of Energy?<\/b><\/h2>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Fusion has the potential to provide <\/span><b>virtually unlimited energy<\/b><span style=\"font-weight: 400;\">, as its fuel sources (like deuterium from seawater) are <\/span><b>abundant and widely available<\/b><span style=\"font-weight: 400;\">.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">It produces <\/span><b>no greenhouse gas emissions during operation<\/b><span style=\"font-weight: 400;\">, making it a key solution for addressing <\/span><b>climate change and global warming<\/b><span style=\"font-weight: 400;\">.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Compared to fission, fusion generates <\/span><b>much less long-lived radioactive waste<\/b><span style=\"font-weight: 400;\"> and has a <\/span><b>lower risk of accidents<\/b><span style=\"font-weight: 400;\">, making it safer.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Although still in the experimental stage, continued progress in <\/span><b>plasma physics, superconducting technology, and reactor design<\/b><span style=\"font-weight: 400;\"> is steadily bringing fusion closer to becoming a <\/span><b>practical and sustainable energy source<\/b><span style=\"font-weight: 400;\">.<\/span><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Artificial Sun uses nuclear fusion technology to recreate the Sun\u2019s energy on Earth. Explore tokamak reactors, plasma, superconducting magnets and the future of clean energy.<\/p>\n","protected":false},"author":29,"featured_media":116316,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[786],"tags":[9166,1865],"class_list":["post-116505","post","type-post","status-publish","format-standard","has-post-thumbnail","category-general-studies","tag-artificial-sun","tag-nuclear-power","no-featured-image-padding"],"acf":[],"_links":{"self":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/116505","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/users\/29"}],"replies":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/comments?post=116505"}],"version-history":[{"count":3,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/116505\/revisions"}],"predecessor-version":[{"id":116548,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/116505\/revisions\/116548"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media\/116316"}],"wp:attachment":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media?parent=116505"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/categories?post=116505"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/tags?post=116505"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}