meteoric dust

См. также в других словарях:

• cosmic dust — n. minute, meteoric grains which usually form interplanetary or interstellar clouds that reflect and absorb light …   English World dictionary

• Meteoroid — A few shooting stars can be seen in this video from the ISS. A Perseid meteor (light streak somewhat to right of center of photo) and Milky Way. A meteoroid is a sand to …   Wikipedia

• Rings of Saturn — The full set of main rings, imaged as Saturn eclipsed the Sun from the vantage of the Cassini spacecraft on 15 September 2006 (brightness is exaggerated). The pale blue dot at the 10 o clock position, outside the main rings and just inside the G… …   Wikipedia

• me´te|or´i|cal|ly — me|te|or|ic «MEE tee R ihk, OR », adjective. 1. of meteors: »meteoric dust, meteoric gases. 2. Figurative. flashing like a meteor; brilliant and soon ended; swift: »a man s meteoric rise to fame. SYNONYM(S): dazzling. 3. of the atmosphere;… …   Useful english dictionary

• me|te|or|ic — «MEE tee R ihk, OR », adjective. 1. of meteors: »meteoric dust, meteoric gases. 2. Figurative. flashing like a meteor; brilliant and soon ended; swift: »a man s meteoric rise to fame. SYNONYM(S): dazzling. 3. of the atmosphere; meteorological …   Useful english dictionary

• Pelagic sediments — Pelagic sediment or pelagite is a fine grained sediment that has accumulated by the settling of particles through the water column to the ocean floor beneath the open ocean far from land. These particles consist primarily of either the… …   Wikipedia

• Isotope geochemistry — is an aspect of geology based upon study of the relative and absolute concentrations of the elements and their isotopes in the Earth. Broadly, the field is divided into two branches: stable and radiogenic isotope geochemistry.Lead lead isotope… …   Wikipedia

• micrometeorite — [mī΄krō mēt′ē ər īt΄] n. a very small meteorite, esp. one that drifts through the earth s atmosphere to the ground without becoming incandescent * * * mi·cro·me·te·or·ite (mī krō mēʹtē ə rīt ) n. A tiny particle of meteoric dust, especially one… …   Universalium

• noctilucent cloud — ▪ meteorology       rare cloud form, probably composed of ice crystals and meteoric dust, that occurs at a higher altitude than any other cloud form (about 82 km [50 miles]). It is silvery or bluish white and is visible only on summer nights in… …   Universalium

• gegenschein — ge•gen•schein [[t]ˈgeɪ gənˌʃaɪn[/t]] n. astron. a faint patch of light in the night sky, opposite where the sun has set: thought to be the reflection of sunlight by meteoric dust • Etymology: 1875–80; < G Gegenschein counterglow …   From formal English to slang

• gegenschein — /ˈgeɪgənʃaɪn/ (say gayguhnshuyn) noun a faint illumination of the sky at night which is sometimes seen opposite the sun; caused by sunlight being reflected by meteoric dust in space. {German: counter glow} …