On Uranus, which is long (17 hours), how does the sun look when it falls below the horizon? When we finally get there, what will the sunset on Mars look like late at night? Thanks to some NASA computer modeling, these scenarios are now easier to imagine.
The reason for the sunset is the interaction between the sun’s rays (including all colors of the rainbow) and the gas and dust in the atmosphere. The less the atmosphere, the less the impression of the sunset.
Planetary scientist Geronimo Villanueva from NASA’s Goddard Space Flight Center in Greenbelt has created simulations that simulate the sunsets of Venus, Mars, Uranus, Saturn moon Titan and Trappist-1e.
As you can see below, these shows are spectacular, showing the scene as if you were pointing a camera with an ultra-wide angle lens to the sky.
For example, on Venus, bright yellow gradually fades into orange and brown, then gradually darkens as the sun disappears. Since the planet rotates so slowly around its axis, you need to wait about 116 times as much as on Earth, which is a little more than half of the Venus year.
It is not necessary to sit down and watch the sunset on Venus, it has a thick CO2 atmosphere, strong surface pressure and an average temperature of 471 degrees Celsius (880 degrees Fahrenheit).
These simulations are not only interesting. They also have serious scientific views on them-preparations before potential exploration missions to Uranus. There are still many unknowns about the gas planet, and any reading about its atmosphere needs to explain the level of light reaching the spacecraft sensor.
With the aid of simulated data on board, the probe can better understand what it is looking for, and it can better assess the wavelength and wavelength of the atmospheric composition-scattering when absorbing sunlight.
Let’s take a look at the beautiful sunset model:
The new model is now part of the Planetary Spectrum Generator built by Villanueva and his colleagues to explain the light reaching our telescope and decode it to try to understand the atmosphere of other worlds.
Mars is our only planet with a chance of survival. Unless we spend all our time on a sturdy and powerful floating spacecraft, it can resist extreme pressure and temperature.
Villanueva’s simulation shows how the Martian sunset views its inhabitants. When the sun disappears behind the horizon, the atmosphere produces a mixture of cloudy brown and bright yellow.
In fact, these simulations are only part of the story-as the Curiosity rover has already shown, the days on Mars may end in a pronounced blue tone because dust will scatter red wavelengths of light out of sight, while Make the blue wavelength hit our eyes. If we can go and see for ourselves.