How do scientists determine the temperature of Mars' surface?

the answers are

Which of the following best explains why Mars' and Venus' surface temperatures vary, despite both planets having atmospheres that contain mostly carbon dioxide?

answer: Mars has a thin atmosphere that cannot hold much heat.

Why is Venus the hottest solar system planet?

answer:Its atmosphere is rich in carbon dioxide gas.

The table shows properties of some planets in the solar system.

answer: Jupiter

Which percent of Earth’s atmosphere does carbon dioxide gas make up?

answer: less than one percent

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Well, they send Martian penguins with tiny thermometers strapped to their feet, of course! Just kidding. Scientists actually use a variety of fancy tools and techniques to measure the temperature of Mars' surface. One common method is by using infrared remote sensing devices, similar to the ones used by the paparazzi to spy on celebrities from a distance. These devices can detect the amount of infrared radiation emitted by the Martian surface and convert it into temperature readings. So, no penguins involved, just some cool technology!

Scientists determine the temperature of Mars' surface using a combination of direct temperature measurements from landers and orbiters, as well as remote sensing techniques.

1. In situ measurements: Landers and rovers sent to Mars, such as the Mars Insight and Mars Curiosity, are equipped with instruments called thermometers that directly measure the temperature of the Martian surface. These thermometers are usually in the form of temperature sensors mounted on the spacecraft, which make direct contact with the ground to collect temperature data.

2. Orbital measurements: Mars has several orbiters, such as the Mars Reconnaissance Orbiter and Mars Express, which carry instruments like the Mars Climate Sounder (MCS) and Thermal Emission Imaging System (THEMIS) that can measure the temperature of the Martian surface from space. These instruments use infrared radiation to detect surface temperatures without making direct contact.

3. Remote sensing techniques: Scientists also use remote sensing techniques to estimate the surface temperature of Mars. One commonly employed method is using thermal infrared imaging. The Martian surface emits thermal radiation, and by analyzing the specific wavelengths of this radiation, scientists can determine the temperature of different regions on the surface. This can be done using instruments like the Mars Global Surveyor's Thermal Emission Spectrometer (TES) or the Mars Orbiter Mission's Thermal Infrared Imaging Spectrometer (TIS).

By combining data from all these methods, scientists are able to get a comprehensive understanding of the temperature distribution across the surface of Mars.