The curiosity of scientists in the field of space research, as in any other field of scientific knowledge, is always ahead of scientific and technological progress.
Step by step, they study every planet in the solar system, including Venus close to Earth.
As research continues, researchers discover more and more interesting facts about the planet Venus.
1. Great similarity with the Earth
Venus has a great resemblance to our planet, because of what it is called the “sister of the Earth.”
The diameter is only 640 km less than that of the earth, and the mass is 80% of the mass of the Earth.
The similarity of the two planets is noted in their orbits and internal structure.
2. Extremely hot climate
Venus is the hottest planet, even in comparison with Mercury. The surface temperature is 470 ° C , while the maximum temperature on Mercury is 427 ° C.
3. Lack of water
There is no water on the surface of the planet. An insignificant water content was found in the atmosphere – 0.003%.
This amount of water is so insignificant that if condensed water vapor to the surface, the water layer would be only 3 cm.
Despite this, scientists believe that in the past there was water on Venus. Presumably, under the action of strong ultraviolet radiation, water decomposed into hydrogen and oxygen atoms, which then flew off into space.
The theory is confirmed by the data of the apparatus “Venus Express”, which found on the night side of the planet significant losses of these atoms in the characteristic ratio for water.
This discovery allows researchers to think that there could be life on Venus.
4. Acid rain
Another feature of the planet – acid rain from sulfuric acid, which evaporate, not reaching the surface.
Researchers suggest that sulfur appeared in the atmosphere of Venus as a result of volcanic activity.
5. High brightness
Venus is the brightest celestial body in the sky after the Sun and the Moon. Its brightness is 3.8-4.6 magnitudes.
6. Sounds on the planet
In 1982, the recording device of the spacecraft recorded the sounds of the planet. Subsequent identification dispelled this myth.
It turned out that the sounds were formed as a result of the station.
Experts have identified:
the sound of dumping covers from telephotometers;
the sound made during the drilling;
sound when deploying a device to determine the mechanical parameters of the soil
7. Lack of satellites
Almost all the planets of our solar system have natural satellites. But Venus, like Mercury, does not have them.
In the 19th century, the hypothesis that Mercury was its companion in the past was popular.
Venus has a quasi-satellite – asteroid VE68. It always remains near the planet, which is associated with the orbital resonance between it and the planet.
8. The ratio of the duration of the year and day
The planet rotates around its axis very slowly, so the day lasts longer than a year.
The Venusian day continues 243 terrestrial, and the Venusian year continues 225 terrestrial days.
9. Ability to observe the planet from Earth
It is visible as a bright star for some time before sunrise and after sunset. If you look through a telescope, you can see the phases of the planet, resembling the phases of the moon.
When Venus is at its maximum distance from our planet, it represents a circle. When it approaches the Earth, it takes the form of a crescent.
10. Reverse rotation
The planet rotates around its axis in a clockwise direction, unlike the rest of the planets of the solar system (except Uranus), which rotate in the opposite direction.
11. Myth of Venus
The planet was named after the goddess of beauty and love in ancient Rome. According to one version, Venus was born from sea foam. After she was born, she was raised and cared for by oceanic nymphs.
After some time on Olympus, the goddess struck all the gods with her beauty and grace. The king of the gods offered Venus to be his wife, but she refused.
In punishment for this, an angry god betrayed her to marry the ugliest god Hephaestus (Vulcan). The goddess of beauty did not love her husband and soon left him, declaring that she would enjoy life.
The described scientific facts about the planet Venus give rise to even more questions “why?” And “from where?”.
Scientists seek to get answers to them as quickly as possible. In the 30s (2027 or 2029), the launch of the Russian-American interplanetary landing station Venera-D (Long-lived) is planned.