{ "id": 20363, "url": "https://svs.gsfc.nasa.gov/20363/", "page_type": "Animation", "title": "Animation: Heliosphere", "description": "The sun sends out a constant flow of charged particles called the solar wind, which ultimately travels past all the planets to some three times the distance to Pluto before being impeded by the interstellar medium. This forms a giant bubble around the sun and its planets, known as the heliosphere. NASA studies the heliosphere to better understand the fundamental physics of the space surrounding us - which, in turn, provides information regarding space throughout the rest of the universe, as well as regarding what makes planets habitable.The solar wind is a gas of charged particles known as plasma, a state of matter governed by its own set physical laws just as the more common solids, liquids, and gases are. As the solar wind sweeps out into space, it creates a space environment filled with radiation as well as magnetic fields that trail all the way back to the sun. This space environment is augmented by interstellar cosmic rays and occasional concentrated clouds of solar material that burst off the sun, known as coronal mass ejections.This complex environment surrounds the planets and ultimately has a crucial effect on the formation, evolution, and destiny of planetary systems. For one thing, our heliosphere acts as a giant shield, protecting the planets from galactic cosmic radiation. Earth is additionally shielded by its own magnetic field, the magnetosphere, which protects us not only from solar and cosmic particle radiation but also from erosion of the atmosphere by the solar wind. Planets without a shielding magnetic field, such as Mars and Venus, are exposed to such processes and have evolved differently.NASA's studies of the heliosphere include research into: how the solar wind behaves near Earth; what causes and sustains magnetic and electric fields around other planets; how does the heliosphere interact with the interstellar medium; what do the boundaries of the heliosphere look like; what is the origin and evolution of the solar wind and the interstellar cosmic rays; and what contributes to the habitability of exoplanets.The field is, therefore, intensely cross-disciplinary. Heliospheric research often works hand in hand with planetary scientists, astrophysicists, astrobiologists, and space weather researchers.NASA heliophysics missions contributing to heliospheric research are: the Advanced Composition Explorer; NOAA's Deep Space Climate Observatory, the Interstellar Boundary Explorer, the Solar Terrestrial Relations Observatory; Voyager, and Wind. || ", "release_date": "2022-03-09T18:00:00-05:00", "update_date": "2023-12-13T00:21:02.263072-05:00", "main_image": { "id": 372595, "url": "https://svs.gsfc.nasa.gov/vis/a020000/a020300/a020363/H_0322_HeliopauseCycle_v01.00680_print.jpg", "filename": "H_0322_HeliopauseCycle_v01.00680_print.jpg", "media_type": "Image", "alt_text": "A conceptual animation showing the heliosphere — the vast bubble that is generated by the Sun’s magnetic field and envelops all the planets. ", "width": 1024, "height": 576, "pixels": 589824 }, "main_video": { "id": 372593, "url": "https://svs.gsfc.nasa.gov/vis/a020000/a020300/a020363/H_0322_HeliopauseCycle_v01.mov", "filename": "H_0322_HeliopauseCycle_v01.mov", "media_type": "Movie", "alt_text": "A conceptual animation showing the heliosphere — the vast bubble that is generated by the Sun’s magnetic field and envelops all the planets. ", "width": 3840, "height": 2160, "pixels": 8294400 }, "progress": "Complete", "media_groups": [ { "id": 315147, "url": "https://svs.gsfc.nasa.gov/20363/#media_group_315147", "widget": "Basic text with HTML", "title": "", "caption": "", "description": "The sun sends out a constant flow of charged particles called the solar wind, which ultimately travels past all the planets to some three times the distance to Pluto before being impeded by the interstellar medium. This forms a giant bubble around the sun and its planets, known as the heliosphere.

NASA studies the heliosphere to better understand the fundamental physics of the space surrounding us - which, in turn, provides information regarding space throughout the rest of the universe, as well as regarding what makes planets habitable.

The solar wind is a gas of charged particles known as plasma, a state of matter governed by its own set physical laws just as the more common solids, liquids, and gases are. As the solar wind sweeps out into space, it creates a space environment filled with radiation as well as magnetic fields that trail all the way back to the sun. This space environment is augmented by interstellar cosmic rays and occasional concentrated clouds of solar material that burst off the sun, known as coronal mass ejections.

This complex environment surrounds the planets and ultimately has a crucial effect on the formation, evolution, and destiny of planetary systems. For one thing, our heliosphere acts as a giant shield, protecting the planets from galactic cosmic radiation. Earth is additionally shielded by its own magnetic field, the magnetosphere, which protects us not only from solar and cosmic particle radiation but also from erosion of the atmosphere by the solar wind. Planets without a shielding magnetic field, such as Mars and Venus, are exposed to such processes and have evolved differently.

NASA's studies of the heliosphere include research into: how the solar wind behaves near Earth; what causes and sustains magnetic and electric fields around other planets; how does the heliosphere interact with the interstellar medium; what do the boundaries of the heliosphere look like; what is the origin and evolution of the solar wind and the interstellar cosmic rays; and what contributes to the habitability of exoplanets.

The field is, therefore, intensely cross-disciplinary. Heliospheric research often works hand in hand with planetary scientists, astrophysicists, astrobiologists, and space weather researchers.

NASA heliophysics missions contributing to heliospheric research are: the Advanced Composition Explorer; NOAA's Deep Space Climate Observatory, the Interstellar Boundary Explorer, the Solar Terrestrial Relations Observatory; Voyager, and Wind.", "items": [], "extra_data": {} }, { "id": 315148, "url": "https://svs.gsfc.nasa.gov/20363/#media_group_315148", "widget": "Video player", "title": "", "caption": "", "description": "A conceptual animation showing the heliosphere — the vast bubble that is generated by the Sun’s magnetic field and envelops all the planets. 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Join Nicola Fox, associate administrator for NASA’s Science Mission Directorate, to learn how you can get involved in one of NASA’s many citizen science projects.In October 2023, NASA launched the Heliophysics Big Year – a global celebration of solar science and the Sun’s influence on Earth, our solar system, and beyond. Modeled after the “Big Year” concept from citizen scientists in the bird-watching community, the Heliophysics Big Year challenges everyone to get involved with fun Sun-related activities.Visit https://science.nasa.gov/citizen-science/ to learn more! || ", "release_date": "2023-12-13T09:00:00-05:00", "update_date": "2023-12-07T13:48:07.191791-05:00", "main_image": { "id": 1087947, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a014400/a014475/14475_Thumbnail.jpg", "filename": "14475_Thumbnail.jpg", "media_type": "Image", "alt_text": "Complete transcript available.Music credit: \"Neutral Motion\" by Eric Chevalier [SACEM] from Universal Production Music.", "width": 1080, "height": 1920, "pixels": 2073600 } }, { "id": 14290, "url": "https://svs.gsfc.nasa.gov/14290/", "page_type": "Produced Video", "title": "The Heliosphere Has Ripples!", "description": "NASA’s Interstellar Boundary Explorer, or IBEX mission, has helped researchers learn something new about the heliosphere – the magnetic bubble created by the Sun that we live in. It turns out, the heliosphere has ripples! These ripples also change – likely due to influences from the Sun itself.The paper explaining the results was published in Nature Astronomy. || ", "release_date": "2023-02-17T12:00:00-05:00", "update_date": "2023-05-03T11:43:42.931075-04:00", "main_image": { "id": 764931, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a014200/a014290/14290_HeliosphereRipples_YouTube.00001_print.jpg", "filename": "14290_HeliosphereRipples_YouTube.00001_print.jpg", "media_type": "Image", "alt_text": "Watch this video on the NASA Solar System Exploration Instagram page.Complete transcript available.Music credits: “Peaks and Spikes [Instrumental]” by Max van Thun [GEMA]", "width": 1024, "height": 1820, "pixels": 1863680 } } ], "newer_versions": [], "older_versions": [], "alternate_versions": [] }