Sentences with phrase «ionized upper atmosphere»

Unlike Earth, Mars has no global magnetic dipole, but the solar wind instead induces currents in the ionized upper atmosphere (the ionosphere), creating an induced magnetosphere.

Not exact matches

This one would involve looking up — into the ionosphere, the portion of the upper atmosphere that is ionized by solar radiation.
Charged particles striking Saturn's upper atmosphere ionize hydrogen atoms and produce infrared radiation, whereas related processes also give off Saturnian auroras at ultraviolet and radio wavelengths.
The results will help them understand how particles are ionized in Saturn's upper atmosphere and will help them put a decade of ground - based telescope observations of Saturn in perspective, because they can see what disturbance in the data comes from Earth's atmosphere.
The radiation was so intense that it ionized atoms in Earth's upper atmosphere for five minutes, disrupting some radio communications.
Now new research shows that these eruptions on the sun's surface not only send bursts of energetic particles into Earth's atmosphere causing disturbances in the magnetic field, but they may also significantly decrease the number of free electrons over large areas in the polar region of the ionosphere — the ionized part of the upper atmosphere.
During the entry of a meteoroid into the upper atmosphere, an ionization trail is created, where the molecules in the upper atmosphere are ionized by the passage of the meteor.
The haze results from chemical reactions in the upper atmosphere, where ultraviolet radiation from the sun ionizes nitrogen and methane, which react to form tiny hydrocarbon particles tens of nanometers in diameter.
Direct photographs of a meteor's trail (the column of ionized gases formed by the passage of a meteoric body through the upper atmosphere) taken at two points on the Earth's surface several kilometres apart yield the most accurate data for tracing the path of a meteor.
C. Carreau, ASPERA - 4 & MAG teams, Venus Express, ESA Annotated image illustrating loss of hydrogen through plasma wake Venus may have lost oceans of water due to a runaway greenhouse effect which evaporated water into the upper atmosphere, where ultraviolet light dissociated water into ionized atomic hydrogen and oxygen (some later incorporated into carbon dioxide) that were blown away by the Solar wind due to the lack of a strong magnetic field like the Earth's (more).
According to the hypothesis; during these increased periods of terrestrial GCR bombardment the earth experiences increased high clouds (and subsequent cooling) because the GCR - ionized atoms in the upper atmosphere (allegedly) make dandy cloud droplet / crystal nuclei.
*** This doesn't apply once you reach the upper atmosphere where high energy radiation (which doesn't penetrate the atmosphere very far) heats it up to thousands of degrees, ionizing it, and even causing weird stuff like the northern and southern lights.
The main source of these layers is the Sun's ultraviolet light which ionizes atoms and molecules in the Earth's upper atmosphere.
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