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Particles of light form from atoms undergoing nuclear fusion in the sun’s innermost layer known as the core. The light then flows through the sun’s interior for millennia, slowly bubbling up like water in a boiling pot. It eventually bursts past the sun’s surface, called the photosphere, and rises into the solar atmosphere. Once in the atmosphere—made up of the chromosphere and corona—the light streams out through the solar system. Watch the video to see how light travels from the sun's interior to the surface. || ", "release_date": "2014-05-22T00:00:00-04:00", "update_date": "2023-05-03T13:50:54.058796-04:00", "main_image": { "id": 454950, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a011500/a011537/c-1280.jpg", "filename": "c-1280.jpg", "media_type": "Image", "alt_text": "Explore how light travels through the layers of the sun.", "width": 1280, "height": 720, "pixels": 921600 } }, { "id": 11084, "url": "https://svs.gsfc.nasa.gov/11084/", "page_type": "Produced Video", "title": "Origin Of Light", "description": "An elegant interaction powers the sun, producing the light and energy that makes life possible. That interaction is called fusion, and it naturally occurs when two atoms are heated and compressed so intensely that their nuclei merge into a new element. This process often leads to the creation of a photon, the particles of light that are released from the sun. However, before exiting our star, each photon must first undergo a long journey. Over the course of 40,000 years it will be absorbed by other atoms and emitted repeatedly until reaching the sun's surface. Once there, the photons stream out, illuminating Earth, the solar system and beyond. The number released from the surface every second is so vast that it is more than a billion billion times greater than the number of grains of sand on our planet. Watch the animation to see how atoms deep inside the sun's core melt together and generate light. || ", "release_date": "2012-10-04T00:00:00-04:00", "update_date": "2023-05-03T13:52:43.445765-04:00", "main_image": { "id": 471779, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a011000/a011084/Cover-1024.jpg", "filename": "Cover-1024.jpg", "media_type": "Image", "alt_text": "Deep in the sun's fiery core, atoms fuse and create light.", "width": 1024, "height": 576, "pixels": 589824 } } ], "sources": [], "products": [ { "id": 14862, "url": "https://svs.gsfc.nasa.gov/14862/", "page_type": "Produced Video", "title": "NASA’s TRACERS Studies Magnetic Explosions Above Earth", "description": "NASA's TRACERS mission, or the Tandem Reconnection and Cusp Electrodynamics Reconnaissance Satellites, will fly in low Earth orbit through the polar cusps, funnel-shaped holes in the magnetic field, to study magnetic reconnection and its effects in Earth's atmosphere. Magnetic reconnection is a mysterious process that happens when the solar wind, made of electrically charged particles and magnetic fields from the Sun, collides with Earth's magnetic shield, causing magnetic field lines to violently snap and explosively fling away particles at high speeds. This process has huge impacts on Earth, from causing breathtaking auroras to disrupting communications and power grids on Earth. TRACERS is launching no earlier than summer 2025 aboard a SpaceX Falcon 9 rocket from Space Launch Complex 4 East at Vandenberg Space Force Base in California.Find out more about the TRACERS mission and how it will help us better understand the ways space weather affects us on Earth: https://science.nasa.gov/mission/tracers/ || ", "release_date": "2025-07-14T11:00:00-04:00", "update_date": "2025-06-27T10:39:30.842035-04:00", "main_image": { "id": 1156667, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a014800/a014862/14862_TRACERSoverview_Thumbnail.jpg", "filename": "14862_TRACERSoverview_Thumbnail.jpg", "media_type": "Image", "alt_text": "Produced VideoWatch this video on the NASA Goddard YouTube channel.Complete transcript available.Music Credit: \"Praxis I,” “Three Voices,” and “Die Vogel” by Alexis Francois Georges Delong [SACEM], “Anticipation” by Nicholas Smith [PRS], “Ocean Wisdom” by Hugo Dubery and Philippe Galtier [SACEM], and “Call from the Sea” by MACARON [SACEM] from Universal Production MusicAdditional Video and Animations: University of Iowa, Southwest Research Institute, Millennium Space Systems, Andøya Space / Trond AbrahamsenSound Effects: Pixabay", "width": 1280, "height": 720, "pixels": 921600 } }, { "id": 14739, "url": "https://svs.gsfc.nasa.gov/14739/", "page_type": "Produced Video", "title": "From the Moon, NASA’s LEXI Will Reveal Earth’s Magnetic Shield", "description": "NASA’s next mission to the Moon will carry an instrument called LEXI (the Lunar Environment Heliospheric X-ray Imager), which will provide the first-ever global view of the magnetic environment that shields Earth from solar radiation.From the surface of the Moon, LEXI will capture wide-field images of Earth's magnetic environment, or magnetosphere, in low-energy (or \"soft\") X-rays. LEXI will study changes in the magnetosphere and help us learn more about how it interacts with a stream of particles from the Sun called the solar wind, which can pose hazards for Artemis astronauts traveling to the Moon.Learn more about LEXI and its CLPS (Commercial Lunar Payload Services) flight to the Moon from Hyunju Connor, LEXI co-investigator at NASA’s Goddard Space Flight Center.More on LEXI: https://science.nasa.gov/science-research/heliophysics/nasas-lexi-will-provide-x-ray-vision-of-earths-magnetosphere/ || ", "release_date": "2025-01-03T12:00:00-05:00", "update_date": "2025-01-16T14:00:58.198229-05:00", "main_image": { "id": 1140107, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a014700/a014739/Thumbnail01.jpg", "filename": "Thumbnail01.jpg", "media_type": "Image", "alt_text": "Watch this video on the NASA Goddard YouTube channel.Complete transcript available.Music credit: \"Breakthrough Discovery\" by Phillip John Gregory [PRS] from Universal Production Music", "width": 1280, "height": 720, "pixels": 921600 } } ], "newer_versions": [], "older_versions": [], "alternate_versions": [ { "id": 14835, "url": "https://svs.gsfc.nasa.gov/14835/", "page_type": "Produced Video", "title": "What Happened During the Biggest Geomagnetic Storm in Over 20 Years", "description": "On May 10, 2024, the first G5 or “severe” geomagnetic storm in over two decades hit Earth. The event did not cause any catastrophic damages, but it did produce surprising effects on Earth. The storm, which has been called the best-documented geomagnetic storm in history, spread auroras to unusually low latitudes and produced effects spanning from the ground to near-Earth space. Data captured during this historic event will be analyzed for years to come, revealing new lessons about the nature of geomagnetic storms and how best to weather them.Learn more:• What NASA Is Learning from the Biggest Geomagnetic Storm in 20 Years• How NASA Tracked the Most Intense Solar Storm in Decades || ", "release_date": "2025-05-09T15:00:00-04:00", "update_date": "2025-07-18T12:09:29.461432-04:00", "main_image": { "id": 1154957, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a014800/a014835/14835_MayStorms_H264.00001_web.png", "filename": "14835_MayStorms_H264.00001_web.png", "media_type": "Image", "alt_text": "Watch this video on the NASA Goddard YouTube channel.Music credits: “Set in the Sky” by Nicholas Smith [PRS]; “Constant Motion”, “Future Now”, and “Currents” by Ben Niblett [PRS] and Jon Cotton [PRS]; “Bow Down To Me” by Max Cameron Concors [ASCAP] and Victoria Faith Beaumont [PRS]; “Moto Perpetuo” by Laurent Dury [SACEM]. Aurora imagery is used with permission. Aurora credits in order of appearance: Neil Zeller, Randell Sean Inoc, Xicao Liu, Bill Dunford, Shelley Tonkin, Alistair Luckman, Shane Turgeon, Kimberly Sibbald, Kylie Reid, Adam Block, Darius Yeoh, William Hudson, Quinn Keon.", "width": 320, "height": 180, "pixels": 57600 } } ] }