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- Energetic_neutral_atom abstract "Energetic neutral atom (ENA) imaging, often described as \"seeing with atoms\", is a technology used to create global images of otherwise invisible phenomena in the magnetospheres of planets and throughout the heliosphere, even to its outer boundary.This constitutes the far-flung edge of the solar system.The solar wind consists of ripped-apart atoms (called plasma) flying out of the Sun. This is mostly hydrogen, that is, bare electrons and protons, with a little bit of other kinds of nuclei, mostly helium. The space between solar systems is similar, but they come from other stars in our galaxy. These charged particles can be redirected by magnetic fields; for instance, Earth's magnetic field shields us from these particles. But, every so often, a few of them steal electrons from neutral atoms they run into. At that point, they become neutral, although they're still moving very fast, and they travel in an exact straight line. These are called Energetic Neutral Atoms. ENA images are constructed from the detection of these energetic neutral atoms.Earth's magnetosphere preserves Earth's atmosphere and protects us from cell-damaging radiation. This region of \"space weather\" is the site of geomagnetic storms that disrupt communications systems and pose radiation hazards to humans traveling at high polar altitudes or in orbiting spacecraft. A deeper understanding of this region is vitally important. Geomagnetic weather systems have been late to benefit from the satellite imagery taken for granted in weather forecasting, and space physics because their origins in magnetospheric plasmas present the added problem of invisibility.The heliosphere protects the entire Solar System from the majority of cosmic rays but is so remote that only an imaging technique such as ENA imaging will reveal its properties. The heliosphere's structure is due to the invisible interaction between the solar wind and cold gas from the local interstellar medium.The creation of ENAs by space plasmas was predicted but their discovery was both deliberate and serendipitous. While some early efforts were made at detection, their signatures also explained inconsistent findings by ion detectors in regions of expected low ion populations. Ion detectors were co-opted for further ENA detection experiments in other low-ion regions. However, the development of dedicated ENA detectors entailed overcoming significant obstacles in both skepticism and technology.Although ENAs were observed in space from the 1960s through 1980s, the first dedicated ENA camera was not flown until 1995 on the Swedish Astrid-1 satellite, to study Earth's magnetosphere.Today, dedicated ENA instruments have provided detailed magnetospheric images from Venus, Mars, Jupiter, and Saturn. Cassini's ENA images of Saturn revealed a unique magnetosphere with complex interactions that have yet to be fully explained. The IMAGE mission's three dedicated ENA cameras observed Earth's magnetosphere from 2000–2005 while the TWINS Mission, launched in 2008, provides stereo ENA imaging of Earth's magnetosphere using simultaneous imaging from two satellites.The first ever images of the heliospheric boundary, published in October 2009, were made by the ENA instruments aboard the IBEX and Cassini spacecraft. These images are very exciting because they challenge existing theories about the region.".
- Energetic_neutral_atom thumbnail HENA_Earths_Ring_Current_July_2000_Geomagnetic_Storm.gif?width=300.
- Energetic_neutral_atom wikiPageExternalLink lPubs.html.
- Energetic_neutral_atom wikiPageExternalLink lNeutralAtomRefs.html.
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- Energetic_neutral_atom wikiPageLength "44974".
- Energetic_neutral_atom wikiPageOutDegree "140".
- Energetic_neutral_atom wikiPageRevisionID "706744616".
- Energetic_neutral_atom wikiPageWikiLink Astrid_(satellite).
- Energetic_neutral_atom wikiPageWikiLink Astronomical_unit.
- Energetic_neutral_atom wikiPageWikiLink Atmosphere.
- Energetic_neutral_atom wikiPageWikiLink Atmosphere_(unit).
- Energetic_neutral_atom wikiPageWikiLink Atom.
- Energetic_neutral_atom wikiPageWikiLink Atomic_nucleus.
- Energetic_neutral_atom wikiPageWikiLink BepiColombo.
- Energetic_neutral_atom wikiPageWikiLink CRRES.
- Energetic_neutral_atom wikiPageWikiLink Cassini–Huygens.
- Energetic_neutral_atom wikiPageWikiLink Category:Geophysics.
- Energetic_neutral_atom wikiPageWikiLink Category:Image_sensors.
- Energetic_neutral_atom wikiPageWikiLink Category:Planetary_science.
- Energetic_neutral_atom wikiPageWikiLink Category:Plasma_physics.
- Energetic_neutral_atom wikiPageWikiLink Category:Space_plasmas.
- Energetic_neutral_atom wikiPageWikiLink Chandrayaan-1.
- Energetic_neutral_atom wikiPageWikiLink Coronal_mass_ejection.
- Energetic_neutral_atom wikiPageWikiLink Cosmic_ray.
- Energetic_neutral_atom wikiPageWikiLink Dynamics_Explorer.
- Energetic_neutral_atom wikiPageWikiLink Earth.
- Energetic_neutral_atom wikiPageWikiLink Electric_charge.
- Energetic_neutral_atom wikiPageWikiLink Electron.
- Energetic_neutral_atom wikiPageWikiLink Electronvolt.
- Energetic_neutral_atom wikiPageWikiLink Electrostatics.
- Energetic_neutral_atom wikiPageWikiLink Euclidean_vector.
- Energetic_neutral_atom wikiPageWikiLink Exosphere.
- Energetic_neutral_atom wikiPageWikiLink File:ENA_Energies.jpg.
- Energetic_neutral_atom wikiPageWikiLink File:ENAs_Impact_Titan_Atmpsphere.jpg.
- Energetic_neutral_atom wikiPageWikiLink File:HENA_Earths_Ring_Current_July_2000_Geomagnetic_Storm.gif.
- Energetic_neutral_atom wikiPageWikiLink File:Hena_schematic3.gif.
- Energetic_neutral_atom wikiPageWikiLink File:TWINS-FirstLight-v3_800.jpg.
- Energetic_neutral_atom wikiPageWikiLink Flux.
- Energetic_neutral_atom wikiPageWikiLink Galaxy.
- Energetic_neutral_atom wikiPageWikiLink Geocorona.
- Energetic_neutral_atom wikiPageWikiLink Geomagnetic_storm.
- Energetic_neutral_atom wikiPageWikiLink Geotail.
- Energetic_neutral_atom wikiPageWikiLink Gravity.
- Energetic_neutral_atom wikiPageWikiLink Heliosphere.
- Energetic_neutral_atom wikiPageWikiLink Heliospheric_current_sheet.
- Energetic_neutral_atom wikiPageWikiLink Helium.
- Energetic_neutral_atom wikiPageWikiLink Hydrogen.
- Energetic_neutral_atom wikiPageWikiLink Hydrogen_ion.
- Energetic_neutral_atom wikiPageWikiLink Hydroxyl.
- Energetic_neutral_atom wikiPageWikiLink IMAGE.
- Energetic_neutral_atom wikiPageWikiLink Interstellar_Boundary_Explorer.
- Energetic_neutral_atom wikiPageWikiLink Interstellar_medium.
- Energetic_neutral_atom wikiPageWikiLink Iron.
- Energetic_neutral_atom wikiPageWikiLink Jupiter.
- Energetic_neutral_atom wikiPageWikiLink Kinetic_energy.
- Energetic_neutral_atom wikiPageWikiLink Light-year.
- Energetic_neutral_atom wikiPageWikiLink List_of_plasma_(physics)_articles.
- Energetic_neutral_atom wikiPageWikiLink Lunar_soil.
- Energetic_neutral_atom wikiPageWikiLink Magnetic_field.
- Energetic_neutral_atom wikiPageWikiLink Magnetosphere.
- Energetic_neutral_atom wikiPageWikiLink Mars.
- Energetic_neutral_atom wikiPageWikiLink Mars_Express.
- Energetic_neutral_atom wikiPageWikiLink Mercury_(planet).
- Energetic_neutral_atom wikiPageWikiLink Momentum.
- Energetic_neutral_atom wikiPageWikiLink Neptune.
- Energetic_neutral_atom wikiPageWikiLink Neutral_particle.
- Energetic_neutral_atom wikiPageWikiLink Orbit.
- Energetic_neutral_atom wikiPageWikiLink Oxygen.
- Energetic_neutral_atom wikiPageWikiLink Photoionization.
- Energetic_neutral_atom wikiPageWikiLink Planet.
- Energetic_neutral_atom wikiPageWikiLink Plasma_(physics).
- Energetic_neutral_atom wikiPageWikiLink Plasma_recombination.
- Energetic_neutral_atom wikiPageWikiLink Plasma_sheet.
- Energetic_neutral_atom wikiPageWikiLink Pluto.
- Energetic_neutral_atom wikiPageWikiLink Potassium.
- Energetic_neutral_atom wikiPageWikiLink Proton.
- Energetic_neutral_atom wikiPageWikiLink Radiation.
- Energetic_neutral_atom wikiPageWikiLink Ring_current.
- Energetic_neutral_atom wikiPageWikiLink STEREO.
- Energetic_neutral_atom wikiPageWikiLink Satellite.
- Energetic_neutral_atom wikiPageWikiLink Saturn.
- Energetic_neutral_atom wikiPageWikiLink Sodium.
- Energetic_neutral_atom wikiPageWikiLink Solar_System.
- Energetic_neutral_atom wikiPageWikiLink Solar_cycle.
- Energetic_neutral_atom wikiPageWikiLink Solar_energetic_particles.
- Energetic_neutral_atom wikiPageWikiLink Solar_minimum.
- Energetic_neutral_atom wikiPageWikiLink Solar_wind.
- Energetic_neutral_atom wikiPageWikiLink Space_weather.
- Energetic_neutral_atom wikiPageWikiLink Sputtering.
- Energetic_neutral_atom wikiPageWikiLink Sulfur.
- Energetic_neutral_atom wikiPageWikiLink TWINS.
- Energetic_neutral_atom wikiPageWikiLink Thermodynamics.
- Energetic_neutral_atom wikiPageWikiLink Ulysses_(spacecraft).
- Energetic_neutral_atom wikiPageWikiLink Uranus.
- Energetic_neutral_atom wikiPageWikiLink Velocity.
- Energetic_neutral_atom wikiPageWikiLink Venus.
- Energetic_neutral_atom wikiPageWikiLink Venus_Express.
- Energetic_neutral_atom wikiPageWikiLink Voyager_1.
- Energetic_neutral_atom wikiPageWikiLink Voyager_2.