A sensor aboard the cassini spacecraft called the cassini plasma spectrometer detected the oxygen ions during a flyby of the moon in 2010 .
在2010年,卡西尼号飞船在一次飞越卫星时传感器检测到称为卡西尼等离子分光仪氧离子。
Lcross 's spectrometer instrument examined light absorbed by the dust particles to determine their composition and discovered a chemical compound emitted when sunlight breaks up water molecules .
Mro carries six science instruments , including radar that peels back the layers of the martian surface , a spectrometer that has mapped the mineral content of three-quarters of the planet , and a weather camera that monitors clouds and dust storms .
Infrared spectra of titan 's surface taken with the visual and infrared mapping spectrometer ( vims ) showed no sign of acetylene , even though ultraviolet sunlight should constantly trigger its production in the moon 's thick atmosphere .
These tools include the alpha particle x-ray spectrometer ( apxs ) , which measures elemental composition , and the mars hand lens imager close-up camera , or mahli .
Scientists used the spectrometer to measure the amount of potassium , thorium , and iron above and below what they thought to be the shoreline of ancient oceans .
科学家们利用光谱仪来测量钾、钍和铁的分布,看它们是高于还是低于他们认定的远古海洋的海岸线。
Observations with the spacecraft 's ion and neutral mass spectrometer and its composite infrared spectrometer revealed that hydrogen produced by uv-triggered chemical reactions in the atmosphere is flowing both upwards and off into space as well as down towards the surface .
Armed with microscopes and a spectrometer , which analyzes the wavelengths of reflected light , the team found that the petals of the buttercup ( ranunculus repens ) have a transparent outer coating that reflects light , enhancing the blossom 's shine .