Venus

Discover amazing facts about Venus, the hottest planet in our solar system and Earth's mysterious twin


Venus is covered in thick, poisonous clouds that trap heat like a greenhouse
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Venus is covered in thick, poisonous clouds that trap heat like a greenhouse

PHOTOGRAPH BY NASA/JPL

Venus is often called Earth's "twin" because the two planets are almost exactly the same size! But don't let that fool you - Venus is nothing like our home planet. It's the hottest world in our solar system, even hotter than Mercury, which is much closer to the Sun. Venus is so hot that it could melt lead, and it's covered in thick, yellow clouds made of acid that would be deadly to humans.

What makes Venus so incredibly hot is something called the "greenhouse effect." The thick atmosphere traps heat from the Sun like a blanket, making the surface hot enough to glow like the inside of an oven. Venus also has another strange feature - it spins backwards! While most planets spin in the same direction, Venus decided to be different and rotates the opposite way.

VENUS QUICK FACTS
LOCATION: Second planet from the Sun
DISTANCE FROM THE SUN: 67 million miles (108 million kilometers)
AVERAGE TEMPERATURE: 900°F (482°C) - hottest planet in the solar system!
LENGTH OF SPACE JOURNEY FROM EARTH TO VENUS: 4-6 months
GRAVITY: If you weigh 100 pounds (45 kilograms) on Earth, you'd weigh 91 pounds (41 kilograms) here
SIZE: Almost exactly the same size as Earth
LENGTH OF DAY: 243 Earth days
LENGTH OF YEAR: 225 Earth days
MOONS: None
SPECIAL FEATURE: Spins backwards and shines brighter than any other planet in our sky

AMAZING VENUS FACTS
Venus is the brightest object in our sky after the Sun and Moon
One day on Venus is longer than one year on Venus
The atmospheric pressure on Venus would crush you like being deep underwater
Venus has over 1,600 volcanoes, more than any other planet
The clouds on Venus are made of sulfuric acid - super dangerous!
Venus appears to go through phases like the Moon when viewed through a telescope

Scientists have sent many spacecraft to study Venus, but it's one of the toughest places to explore in our solar system. The thick atmosphere, crushing pressure, and extreme heat destroy most spacecraft within hours of landing. The Soviet Union's Venera missions were the first to successfully land on Venus and send back pictures from the surface.

NASA is planning some exciting new missions to Venus! The DAVINCI mission will drop a probe through Venus's thick atmosphere to study the air and take pictures as it falls toward the surface. Another mission called VERITAS will use advanced radar to create detailed maps of Venus's surface and look for active volcanoes. These missions will help us understand why Venus became so different from Earth, even though they started out so similar!

Spotting Venus from the Sky Diagram