It will get as close as 93 miles from the surface.
The European Space Agency is preparing to send an orbital spacecraft to Venus — a feat which will require some out-of-the-box thinking to survive the planet's grueling atmosphere.facing its EnVision mission. Topping the list of challenges is our planetary neighbor's "hot, thick atmosphere," which is made up of carbon dioxide and sulfuric acid fumes, making it the hottest planet in our Solar System.
That means the agency will need a detailed plan to safely "surf" the Venusian atmosphere — without having its spacecraft burn up like a marshmallow that got too close to the flames.As of right now, the ESA is in the process of developing a tried-and-true "aerobraking" method, which involves the spacecraft slowing down significantly so that it can lower its orbit to just above the inner edge of the planet's roiling atmosphere.
At this stage, it will try to collect as much information as possible about the planet below. If all goes according to plan, EnVision will repeat this process over thousands of orbits. According to EnVision study manager Thomas Voirin, the craft will get as low as 93 miles above Venus' surface to get the best possible images — a process that will require the orbital probe to withstand the planet's hostile atmosphere.
To help it do just that, engineers at the ESA are testing a range of different materials and coatings to protect the spacecraft's delicate scientific instruments.
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