What s under Europa s 20 km thick ice? Why 4 billion to explore?

There should be fresh water or some kind of life organism down there. The specific existence of what needs further scientific ** can gradually confirm our conjecture, and only when the exploration is successful, it is possible to make greater contributions to the human history of mankind.

Scientists believe that Europa is likely to have unknown life under Jupiter's strong gravitational pull, and if it is too large, then it is likely that humanity will be hindered by a blowout when it penetrates its thick ice one day in the future.

It is likely that liquid water is present beneath Europa's ice, and it is possible that life is present. The huge investment in exploration is also to enable mankind to take a bigger step towards space.

It will take time to actually discover what lies beneath the ice, but so far scientists have invested $4 billion in the development of ice pry instruments because they believe that there is an ocean underneath.

Europa is the most likely moon in the solar system to host life outside of Earth, and its entire exterior is obscured by ice, which is several kilometers thick, and scientists believe that life may exist under the ice, including low-end and complex life forms.

American probes and sonars captured a special sound under Europa's ice, much like a dolphin sound, and recorded it and transmitted it back to Earth for dolphins to listen, and the dolphins showed a state of communication, so that dolphins are the most intelligent creatures on Earth except for primates, thinking that Europa may have dolphin-like life. Of course, this is only conjecture, Jupiter's four major moons, as well as Titan and the Moon, are currently the six large moons that are suitable for probes to land, and with the development of science and technology, it is feasible to explore whether Europa life can exist in the future. The yellow spots on Europa's ice crust are common table salt, meaning that Europa's oceans may resemble Earth's oceans.

When NASA's Zao Sakura Explorer and Galileo spacecraft returned to Earth with signs of an ocean presence on Europa, there was a growing hope that the planet might have some way of extraterrestrial life. Unfortunately, the infrared spectrometer carried by Galileo revealed that Europa's water ice contained magnesium sulfate, and more people may be more familiar with the name Epsom salt. Since Europa's crust is relatively young from a geological point of view, this means that the salt may have come from the ocean buried below.

If this were the case, the chances of life appearing in deep water would be greatly reduced. However, NASA's team found these conclusions flawed because it relied on the near-infrared band of the spectrum and the low resolution of the equipment carried by Galileo. Because of this, chlorosis compound compounds are not visible at a large level.

To overcome this problem, researchers needed high-resolution spectrometer data in the visible wavelength band.

According to NASA, the discovery was demonstrated by the NASA ESA Hubble Space Telescope. It is reported that the telescope stopped spectral scanning in the visible light band at 450 nanometers, and the results were in perfect agreement with the spectra of the irradiated salts, especially in the tara regio region. While this news is encouraging, NASA stressed that this is not direct evidence of the presence of sodium chloride in the Europa Ocean, but may simply be the result of stratification.

I don't think there's any life under the ice, because there is no sign of life detected in Europa, and the ice isn't so good that the technology can't detect these planets through the ice, so I don't think life can exist in such a serious environment.

There should be no life, because the temperature of the ice is very low, and there is no suitable environment for living creatures under the ice.

There is no way to know for sure, there may be life, after all, life is diverse.

There are many celestial bodies in the universe, among which stars, planets and satellites are the three types of celestial bodies that we are most familiar with, if they correspond to our solar system, the sun is a star, the earth is a planet, and the moon is a satellite. The Moon is the only natural satellite of the Earth, and it is also the most familiar celestial body besides the Sun, the Moon is a satellite that is tidally locked by the Earth, and its rotation period coincides with the period of revolution around the Earth, so we can only see the same side of the Moon forever on Earth.

In every dark night, Tongzheng Mountain, we hope to look up to see the bright moon, in ancient times moonlight is one of the main light sources at night, it can be said that the moon has been integrated into our human life. In our solar system, the eight planets orbiting the sun, a total of 185 moons have been discovered, of which Jupiter is the planet with the largest number of moons, with a total of 69 moons, and Saturn is the planet with the second most moons, with a total of 62 moons.

Of Jupiter's 69 moons, four of them are called Galileo moons, and they are Ganymede.

1. Ganymede. 2. Ganymede and Ganymede, these four are all large moons of Jupiter, and the reason why they are called Galilean moons is because these four moons were first discovered by Galileo in 1610, and were named "Io", "Europa", "Ganimede" and "Caristo", today we will introduce Jupiter's moon Europa.

Europa is the smallest of the four Galilean moons, Europa has a diameter of 3,122 kilometers and is the sixth largest moon in the solar system, after Io.

3. Encete. Sixth, Ganymede.

3. After Europa and the Moon, Europa is the second closest moon to Jupiter, and the composition of Europa is very similar to Earth-like planets such as the Earth, which is composed of silicate rocks, and through the Hubble telescope, Europa has a thin oxygenated atmosphere on the surface, does this mean that there is life on the surface of Europa?

Because Europa is buried in orbit on the far side of Jupiter, the solar radiation received here is small, and the temperature is colder, so the ice on Europa's surface can be more than 100 liters thick.

First of all, the thickness of Europa's atmosphere is very thin, resulting in a very low surface temperature, and Iode is far away from the sun and cannot absorb the sun's heat. Trapped.