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    Warum wurde die Venus so heiß?

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    3. Mirar on

      Once there was a huge, global civilisation that started to burn remains of previous life. It allowed them to rise quickly in science. They found other, better sources of energy that didn’t cause problems. But a few of them that owned the sources of the previous fuel wanted to have taps of precious metal in their bathrooms, so they manipulated everyone to keep using the fuel that caused issues. The rest is history.

      (No, we don’t know. But we do know that it got hot enough to start vaporising water, which is also a greenhouse gas. So runaway greenhouse effect.)

      Edit to add:

      Venus gets 2,623 W/m² of solar radiation, compared to 1,373 W/m² for Earth and 591 W/m² for Mars.

    5. whynaughtlaugh on

      Its a runaway greenhouse effect. Venus once had oceans like earth but now theyre all steam in the atmosphere. We would be crushed by the weight of the air on the surface of venus

      Edit venuses lack of magnetosphere caused all water vapor to be broken into hydrogen and oxygen molecules and lost to space

    6. MoodayTV on

      By having more energy entering the system than exiting. Runaway greenhouse effect. Carbon Dioxide is a good insulator.

    9. ElGuaco on

      Just a karma farmer asking questions that can be easily googled. And you all fell for it.

    12. chris_redz on

      Are you sure that’s Venus? Last time I saw that kind of picture it was a chorizo slice. I like my planets 3D so no unwanted salami tricks me again

    15. ceebeefour on

      Maybe Venus has always been hot, behind those thick glasses and ponytail. Maybe you’re the one that’s changed OP.

    16. libra00 on

      You know that greenhouse effect people have been harping on that’s warming the planet for the last 50 years or so? Turns out that works on other planets too, only some of them have a great heaping *shitload* more greenhouse gasses in their atmosphere than Earth does. Venus is one of them: its atmosphere is more than 95% CO2, and it gets not quite double the amount of energy from the sun as Earth does (because it’s closer.)

    17. MidWestKhagan on

      Because the life forms on Venus decided that climate change isn’t real and kept doing things to heat up the planet by using gas and other pollutants causing a greenhouse effect. 

    18. Vegieescuzican09 on

      runaway greenhouse effect (have to type more because of some bot thing bruh)

    19. budha2984 on

      David Grinspoon has a book about Venus. He studies the planet and has a very good understanding of the weather

    20. Low_Bandicoot6844 on

      Venus has an atmosphere composed of 96% carbon dioxide (CO₂), a gas that traps heat very efficiently.

    21. backtotheland76 on

      I think you mean the surface of Venus. Fun fact, A few thousand feet above the surface the temperature is very temperate. In fact, it’s considered the closest environment to Earth anywhere in the Solar system

    22. mtnviewguy on

      The same reason we would if Donald P Trump ran everything. Greenhouse gasses that apparently don’t exist!

    24. Sinz_of_the_flesh on

      All I know is the Russians probe sent there landed and lasted just a little more than 8 minutes before it began to melt. Probably a blob of molten muck now.

    25. VWKDF on

      Venus has a super thick and dense atmosphere. It is a pressure cooker. Read about the Russian probes that went there. Venus is very different to Earth.

    26. KingPabloo on

      She didn’t like Mars getting all the attention from Earth so she really worked on itself and now she’s really hot…

    28. Fonkybeachbum on

      My guy says that Venus doesn’t have plate tectonics. Maybe it did at one point. So on earth, carbon is naturally sequestered because where two plates come together, the plate going under buries the carbon and takes it out of the atmosphere. Venus doesn’t have this so all of the greenhouse gases that come from volcanism remain in the atmosphere causing the runaway greenhouse effect and crazy air pressure.

    30. CressDirect5902 on

      Earth has the ability to recycle carbon back into the mantle through subduction, where as venus lacks any form of plate tectonics.
      Plate tectonics have done a fantastic job of regulating volcanism on earth. Venus, on the other hand, suffers from rampant volcanism across its entire surface.
      Because of this, venues atmosphere is like 80x denser than earth’s, and mostly co2 which traps a lot of heat.
      Its day is also longer than its year, so the sun is in the sky for 60 days at a time.

    32. I_Want_A_Ribeye on

      Much like my high school girlfriend, she was gassy but got hotter over time.

    33. Jutter70 on

      I blame Shocking Blue: Goddess on a mountain top, burning like a silver flame.

    35. darwinshrugged on

      Wait, we now know proximity and atmospheric composition are driving the heat, but why is Venus positioned in such a way? How does something absorbing so much energy not fluctuate in orbit? Does the gravitational positioning have more power than the solar radiation so in the shakeout it’ll cook, but it won’t budge?

      My understanding is that thermodynamics should drive some sort of behavior on a celestial body being energized to such an extent.

    38. fenton7 on

      Occam’s razor usually has the best explanation – it’s twice as close to the Sun as Earth. How that heat imbalance manifests itself, a runaway greenhouse, is secondary to the primary cause which is proximity to a star. Put Earth at the same distance and it would quickly experience similar effects.

    39. TechDocN on

      Is this a serious question or just a prompt to get us to make silly jokes?

      Closer to the sun, thick atmosphere, hot planet.

    41. the_knower02 on

      Personal theory is massive cosmic impact that resulted in it’s partial tidal locking and retrograde rotation. This would exacerbate the runaway greenhouse effect bc of the lack of day/night cycle that earth enjoys. Likely bad luck during the late heavy bombardment. Earth took similar impacts but preserved. Venus just seems like it took a heavy blow it never recovered from (in terms of being able to support life, otherwise it’s a fine scorching oasis)

    42. The_Emperor_883 on

      Well when some planets hit puberty they go thru changes. Some times those changes can be appealing to the opposite sex!

    46. mkomaha on

      We all know it’s the runaway greenhouse affect.
      What I want to know is what are those crazy doodles we see?

    48. Comfortable-Shoe9543 on

      Our ancestors trashed that planet and since we never learned about it history is repeating itself on this planet.

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