NASA will investigate pollution spreading from Earth into space

Washington, Dt. 20 July 2022 Wednesday

Each year, more than 1 billion metric tons of dust and sand are blown into the atmosphere by fast winds. Scientists know that dust affects the environment and climate, but they don't currently have enough data to determine what effect this has or what might happen in the future.

For this recently SpaceX Dragon spacecraft has been launched at the International Space Station. Hereby NASA has sent the Earth Surface Mineral Dust Source Investigation Device. Which will help the scientists in this matter. EMIT's state-of-the-art imaging spectrometer is built by the agency's Jet Propulsion Laboratory in Southern California. The spectrometer will measure more than a billion dust particles around the world over the course of a year.

EMIT is going to do a lot of important work by going into space. This will identify the composition of mineral dust from arid regions of the Earth. Desert areas generate the most mineral dust, which is released into the atmosphere. EMIT from the space station will map the sources of the world's mineral dust. The imaging spectrometer will provide information on the color and structure of dust sources on a global scale for the first time. This will help data scientists to understand what type of dust dominates each area and what effect this will have on the climate.

EMIT will also provide information on whether the dust warms or cools the planet. It is not yet known whether the dust cools or warms the Earth. This is because the dust particles in the atmosphere have different properties. Some particles may be dark red in color. While some are white, this color is important because it indicates whether or not the dust will absorb the sun's energy, like dark particles.

Apart from this, it will provide insight into the effect dust has on various processes on Earth. Dust particles are different colors because they are made up of different substances. As dark red particles are made of iron. EMIT10 will collect data on types of dust particles including iron oxides, clays and carbonates. With this data, scientists can accurately assess the impact dust has on different ecosystems and processes.

This data will improve the accuracy of climate models. Not only that, it also allows scientists to predict how climate change will affect the type and amount of dust in our atmosphere in the future.