Sentences with phrase «through spectroscopic observations»
Measurements of surface chemical composition, either by direct sampling (as has been done on Earth, the moon, and Mars) or through spectroscopic observations, can be used to estimate elemental abundances and the degree of chemical differentiation that occurred as the planets condensed from the solar nebula.
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EChO will investigate their composition and chemical / physical properties through repeated, simultaneous, multi-wavelength spectroscopic observations.
«Spectroscopic observations of the white dwarf allowed us to measure the abundances of the rocky material as it is being accreted and filtered through the star's atmosphere in real time,» Melis said.