Infrared images of Mars captured by the space telescope show its surface features and hint at its chemistry.
and could provide planetary scientists with a unique view of Earth's close neighbor, delivering data that can be used in conjunction with observations made by rovers likeJames Webb Space Telescope snags its 1st direct photo of an alien world
To prevent the bright infrared light from Mars from blinding the JWST's instruments, scientists used very short exposures to observe the Red Planet. This meant measuring only some of the light that reached JWST's detectors and then applying special methods to analyze the collected data. The first images of Mars taken by the JWST show an area in the eastern hemisphere of the planet in two different wavelengths of light.
The amount of light reaching the JWST isn't only related to the planet's temperature, however. The images collected by the telescope can also give hints at the chemical composition of theAnalyzing the spectrum of light detected coming from Mars with data collected by the James Webb Space Telescope could help astronomers determine the composition of its atmosphere and its surface.
The darkening seen at this well-preserved impact structure is the result of light passing through the"The Hellas Basin is a lower altitude, and thus experiences higher air pressure," the Goddard researcher explains."That higher pressure leads to a suppression of the thermal emission at this particular wavelength range due to an effect called pressure broadening. It will be very interesting to tease apart these competing effects in these data.
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