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It is closest to the Sun.
Venus is the hottest planet in solar system because it has a atmosphere containing nearly 96% of CO2 a gas responsible for causing greenhouse effect (if you don't know green house effect Google it) making Venus literally a oven as the heat trapped by the CO2 is not able to go out.
Venus is the hottest planet because The atmosphere consists almost entirely (96%) of carbon dioxide (CO2), a greenhouse gas responsible for the incredibly hot, greater than 400ºC conditions on Venus, surpassing the melting point of lead. The rest of the atmosphere is comprised of 3% nitrogen, 0.003% water vapor, and small quantities of other gases.

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What is the hottest planet and brightest planet in the sky?

Venus is the brightest and hottest Planet in our solar System.


Why is Venus the coldest planet in space?

Venus is not the coldest planet in space; in fact, it is the hottest planet in our solar system. This is because of its thick atmosphere that traps heat, creating a runaway greenhouse effect. The surface temperatures on Venus can reach up to 900 degrees Fahrenheit (475 degrees Celsius).


Which planet is closest to the sun why isin't it the hottest planet?

Mercury is the closest planet toward the sun. Although it should be the hottest planet, it is not. Venus, the planet right next to Mercury, is the hottest planet. Mercury can get up to 800 to 900 degrees Fahrenheit, but Venus can get up to 900 to 1,000 degrees Fahrenheit, which is about 100 degrees hotter than Mercury's surface. FUN FACT! Venus is the hottest planet because it is filled with volcanoes erupting every second. Another reason why Venus is the hottest planet is because of it's rain. Venus actually rains boiling hot acid!


Is Mars the fourth hottest planet in your solar system?

Yes.Earth is 3rd hottest,Mercury is 2nd hottest, and Venus is the hottest.


What two planets are hottest and why?

The two hottest planets in our solar system are Venus and Mercury. Venus is the hottest due to its thick atmosphere that traps heat, creating a strong greenhouse effect. Mercury is the second hottest because of its proximity to the sun, although it has no atmosphere to retain the heat.