10 Most Frequently Asked Questions About Venus

Venüs-hakkında-yanıtı-bilinmeyen-10-soruVenus is the closest planet to Earth on average. So what do we know about Venus? Few things! Like, did they ever have oceans? Was it suitable for life in the past? Why, if any, did Venus’ water evaporate and the planet became uninhabitable in 1 billion years? We will look for answers to all of these in this article and 10 questions. Indeed, NASA is similar to planet Earth in terms of mass, gravity and size; however, it will send the VERITAS and DAVICI+ probes to the planet Venus, which is actually the evil twin of our habitable world, hostile to life, in 2027 and 2029, respectively.

The VERITAS satellite, which will measure the general radiation of Venus, especially heat waves, will transmit the hell planet with radio waves. will examine with synthetic aperture radar and spectrometer using interferometry technology. In fact, VERITAS is the Latin derived name of the English names of the experimental devices I have mentioned, which means truth in Turkish. DAVINCI+, on the other hand, consists of both a satellite and an atmospheric probe.

How does it work

The atmospheric probe will dive to the planet while the satellite stays in space, but before it reaches the surface it will be crushed by the enormous pressure and heat. will be. It will still analyze the chemistry of Venus’ super-thick atmosphere, thermal convection movements, and weather phenomena (wind, acid rain, etc.). I’ve counted a lot of technical terms too, but don’t worry. I will also discuss VERITAS and DAVINCI, which will explore Venus in the 2030s, in tomorrow’s video. In this article, I will explain how NASA is looking for answers to 9 unknown questions about Venus with these spacecraft. After all, Venus shows how Earth-like planets can become uninhabitable due to global warming.

Thus, it not only points out how difficult it is to find planets that harbor life in space, but also that there may be life on these planets, at least at the level of bacteria. In short, Venus is a great test world for accurately determining and limiting our search for life in outer space. If we understand whether Venus used to be covered with oceans, whether it was suitable for life, in short, why it used to be a friendly planet more like Earth, we will learn to seek life in space. We see life in space neither as rare as it is, nor as common as it is. If you’re ready, let’s ask 10 critical questions about Venus:

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The biggest mystery about Venus

We are very curious about Venus; Because Venus is the planet most similar to Earth, with mass, size, gravity and thick atmosphere, weather events, and oceans that were once thought to have. On the other hand, it is also thought-provoking that a planet so similar to Earth is so hostile to life due to uncontrolled global warming just because it is close to the Sun and too hot. It is especially important to consider what might happen to us if we continue to increase global warming by burning fossil fuels such as natural gas, coal and oil on our planet.

The natural global warming created by Venus’ thick atmosphere wraps the planet like a quilt and overheats its surface. So much so that its surface temperature is 467 degrees, high enough to melt lead, even exceeding the daytime temperature of Mercury, the closest planet to the Sun. Moreover, the surface of Venus is as overwhelming as the weight of water 900 meters deep at 90 atmospheres. Moreover, it rains sulfuric acid almost without interruption. Since the continents do not slide on the surface of Venus, volcanoes constantly erupt and heat the planet and surround the land with giant lava plateaus the size of a mountain and the size of Turkey.

So much so that 81 percent of sea creatures, which took place 251 million years ago on Earth, are vertebrate land creatures. The Great Death mass extinction from the volcano, which killed 70 percent, and 58 percent of living species in general, occurs every day on Venus! If you add the hurricane-like winds of 360 kilometers per hour (despite the thick and dense atmosphere!) to all these, you will see that Venus is a pressure cooker world with extreme heat and high pressure hostile to life.Was there life on Venus?

To answer this, we must understand Venus’ past environment. This is possible by understanding the atmosphere, landforms and history of the planet. Especially the DAVINCI probe will work for this. There is a small chance that DAVINCI will reach the surface, and in the last 17 minutes before it is crushed and burned, it may provide information on whether there was any former life on Venus. Ultimately, the planet’s atmosphere and surface chemistry will show us which substances are present and in what proportion. This will provide indirect information on whether Venus was once habitable.

2. Why did Venus differ from Earth?

Yes, there is no water left on the planet anymore, but Venus’ chemical composition is similar to Earth. After all, both formed in the same region of the preplanetary disk. Its mass and size are considered equal to the Earth. So why did Venus become a hell planet? There may be many reasons for this. Most importantly, it is close to the Sun. A thick atmosphere like Earth will only heat a planet if it is far from the Sun. If it’s close, it will scorch.

Second Venus rotates very slowly, and there is no shifting of the continents to prevent volcanoes from erupting nonstop for millions of years. Therefore, the planet does not have a strong magnetic field to protect its atmosphere from the sun’s rays and winds. For example, a Venus year is 225 Earth days, but a Venus day is 241 Earth days. Venus rotates on its axis at only 6.52 km/h and in the opposite direction! You can even delay the sunset by walking at the polar circle instead of at the equator. 😉 So, on Venus, you can prevent the Sun from setting just by running in the opposite direction. Speaking of the opposite direction, on Venus the Sun rises in the west. You can’t see it in the thick atmosphere, though.

What shall we say about Venus?

As the late Rasim Öztekin said in G.O.R.A., there is the planet! All this must have increased the heat holding capacity of the atmosphere. If there were short-term storms and rains as we know it, the climate of the planet would be more resistant to overheating. Maybe Venus was hit by a Mars-sized planet just as it was forming. Just like it did to Earth, but unlike Earth, it slowed Venus’ rotation rate, causing it to flip over. Perhaps this collision did not give Venus a metallic core as large and heavy as Earth. Thus, he prevented the formation of a dynamo that would generate a strong magnetic field. This prevented Venus from being suitable for life.

As a matter of fact, the question I am most curious about about Venus is: Does the core of planet Earth have the optimum size needed to produce a strong magnetic field to protect the atmosphere, or not? Does it have a minimum size? After all, Venus’ mass is 81 percent of Earth’s, and its diameter is nearly equal to Earth, with a slightly larger proportion due to its lower mass.

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3. How did the planet Venus form?

We think Venus used to contain as much water as Earth. Because it has a gravity almost as strong as Earth, but that’s not certain. Yes, both planets formed in the same region of the preplanetary disk, but Venus was closer to the Sun. The Venus side of the disk is drier and hotter. Yet Venus must contain enough water vapor to burn with global warming; because water vapor is a greenhouse gas 60 percent more effective than carbon dioxide. Before Venus lost its water, the main driver of global warming was water vapor. Or would even a drier atmosphere be very hot when it was that close to the Sun?

So how much water did Venus contain in the beginning? Also, like Earth, did it gain 25 percent of its water from wet asteroid and comet collisions? What was the role of the planetary collision, which caused Venus to rotate so slowly and upside down? Or did this collision mess things up when Venus would be better suited for life? If you think that a Solar System with 8 planets actually started with 20 planets, it can be considered a miracle that our Earth is not one of the 12 disappearing/disappearing. We are fit for life because…

4. Another question about Venus: Atmospheric chemistry

One of the great mysteries of the Venusian atmosphere is the lowest layer of the atmosphere, which corresponds to our troposphere.It becomes almost liquid by compressing. This is what we mean when we say Venus pressure cooker world. Contrary to popular belief, a pressure cooker does not work only with temperature and high pressure. Vapor pressure is almost like liquid pressure. Here, the DAVINCI probe will measure the aerodynamic, fluid dynamics and thermodynamic properties of Venus air by measuring the atmospheric pressure every 200 meters as it descends to the surface. It’s basically going to do science…

How do stars explode?

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5. Another question about Venus: Gravitational waves

How does the wind blow on Venus? Let’s see this in the context of gravitational waves; because we found gravitational waves on Venus. First of all, gravitational waves are like sea waves and are caused by the fluctuation of air on Venus. So don’t confuse this with gravitational waves emitted by merging black holes that ripple spacetime itself. Secondly, the Earth has a thick atmosphere, but we do not see gravitational waves. The reason for this is lands, seas and mountains. These allow the air to “draft” by cutting and directing the wind. This prevents the atmosphere from being uniform.

There are no seas on Venus, but the surface pressure is so high that the planet’s surface is flat like the Albanian petulis, except for volcanoes. So the Venusian surface is more like oceans than land. Also remember that the planet rotates very slowly on its axis. So much so that the atmosphere of Venus rotates faster than the planet, especially at high altitude (65 km). This creates gravitational waves in the atmosphere, just like the giant tsunami waves that ravaged the planet Miller in the movie Interstellar, but this time “made of air.” Like a crumpled blanket, they can create atmospheric hump, or standing waves, for days and months somewhere on Venus. Imagine that the air has a stable elevation like the Ural Mountains.

This is the new mystery about Venus

Moreover, although there are few mountains on Venus, there are the Aphrodite Terra mountains. These form a kind of wall and allow the air to rise above the rest of the air. Thus, a 10 thousand km long gravitational wave is formed that cuts Venus vertically between the poles. He saw this when Japan’s Akatsuki satellite entered orbit around Venus. Yet at high altitude there must be horizontal jet stream winds similar to our stratosphere. So how does it preserve this waveform? One explanation is that the atmosphere on Venus is very thin at 65 km while denser in the lower layers.

Perhaps the horizontal winds are not blowing as fast as we do when the air is 10 km above the ground? Don’t forget that this time the planet is at work… As someone who asks every question I can think of about Venus, I would love to know if this stable airwave is increasing global warming. I also wonder when gravitational wave conditions emerged, since the air was not that dense at the beginning of global warming (the oceans had not evaporated yet).

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6. How then were the Venusian rocks formed?

NASA’s DAVINCI satellite will examine the atmosphere from space as the probe descends. It will also use high-resolution imaging systems that see under the clouds. If you ask what this has to do with rocks: DAVINCI can see ancient ocean traces and dried up river beds on the Venusian surface. It is then possible to relate atmospheric chemistry to water. There is only one big problem; Although the continents do not shift on Venus, this is a very active planet in terms of volcanism. Finding a river bed would be very difficult if the whole place was covered with lava (basalt) plateaus. However, I will discuss the water issue on Venus below:

How does the Webb space telescope work?{ 2}


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7.I have included the scientific article containing the latest developments on the question of how much water was on Venus at the end of the article.1 Still, I would like to add that Venus does not lose its water in a day. It is worth noting that the thick atmosphere will protect the water from Solar radiation as the water evaporates. Perhaps for billions of years, water vapor remained in the atmosphere. We do know, however, that over the past few hundred million years Venus has been an extremely volcanically active planet. This is a mystery, of course…

You would expect volcanic activities to cease 1 billion years ago on a planet like Venus where the continents did not slide (again, as on Mars). The planet, on the other hand, has gotten lighter in the last few hundred million years, but why? Maybe there is very important information we need to learn about the inner cores of planets on Venus. In short, if Venus has oceans, their evaporation must have been completed as a result of increased volcanic activities in the last few hundred million years. There may still be an answer to this mystery:

What if Venus never formed an ocean? What if the surface of Venus was too hot to ever allow liquid water? Then it would be easier to explain the disappearance of water vapor over time. In fact, it would be easier to explain with increased volcanic activities in the last 300 million years. In any case, Venus today is just the kind of hell described in the scriptures. As a matter of fact, the Soviet Union’s Venera 13 satellite went down in history as the longest-running probe on the surface of Venus, and if you look at the picture you’ll see that it’s like a tank. Yet Venera 13, which landed on the planet on October 30, 1981, only lasted 127 minutes. Although we were saying that it would be crushed and destroyed in 30 minutes, but it worked 4 times longer. Great success!

How do lava planets form?

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8. Tectonic movements on Venus

We said that there is no continental drift on Venus, but perhaps the continents shift vertically rather than horizontally as on Earth, or we are completely wrong about this. We have to somehow explain the increased volcanic eruptions over the last 300 million years. This actually depends on how thick Venus’ crust is. Continents can only slide on thin crust. Otherwise, the crust would have to be very hot for the continents to slide, and that would melt the lithosphere and make a spherical lava ocean. Then there would be no continental drift. This should be considered before deciding on Venus.

9. What do the mountains on Venus look like?

Fortunately, the DAVINCI probe will take high-resolution photos of the Tessera region on the Alpha Regio plateau as it descends on Venus. NASA specifically chose this place; because the landforms here will allow us to understand whether there is a continental drift on Venus. In any case, we think Venus has low, flat, and flat mountains, but basalt plateaus are the most common landforms.

10. Are there any Venus-like exoplanets?

Venus showed us how different even a planet very similar to Earth can be in details. It’s like being unfit for life at all. So how common are Venus-like planets among rocky planets? Answering 10 unknown questions about Venus will not only show how common life is in space, but also test the assumption (because they’re simpler) that bacteria must be more common than complex life. Hell worlds like Venus are hot. We’ll be able to see them with NASA’s planet-hunting TESS space telescope and, of course, the Webb space telescope. What shall we say? The adventure about Venus begins now! Stay with science and health. 🙂

Did Venus ever have oceans?


1Was Venus Ever Habitable? Constraints from a Coupled Interior-Atmosphere-Redox Evolution Model
2Warm terrestrial planet with half the mass of Venus transiting a nearby star

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