In Situ


In situ refers to conducting experiments or measurements in their natural environment, without removing or altering the sample or system being studied. In the context of space and astronautical engineering, in situ measurements are often used to study celestial bodies such as planets, moons, asteroids, and comets. This involves sending spacecraft equipped with scientific instruments to these bodies to collect data and perform experiments on site. In situ measurements can provide more accurate and detailed information than remote sensing techniques, which rely on observations from a distance. In situ exploration also allows for the collection of samples for analysis on Earth, which can provide insights into the composition and history of the celestial body being studied.


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