Key Facts about Venus

May 7, 2024

A team of US scientists has shown through computer simulations that the absence of water on Venus results from hydrogen chemistry in the planet’s atmosphere.

About Venus:

  • It is the second planet from the Sun and the sixth largest planet.
  • It is the hottest planet in the Solar System, even though Mercury is twice as close to the Sun and receives four times more solar energy.
  • Venus' atmosphere traps heat from the sun as an extreme version of the greenhouse effect that warms Earth. 
  • Temperatures on Venus reach 880 degrees Fahrenheit (471 degrees Celsius), which is more than hot enough to melt lead. 
  • Venus and Earth are often called twins because they are similar in size, mass, density, composition and gravity
  • Venus is only a little bit smaller than Earth, with a mass of about 80% of Earth's
  • Composition:
  • It is not a gas planet, but a rocky planet. The interior of Venus is made up of a central iron core and a rocky mantle, similar in composition to Earth.
  • Its atmosphere is made up of mainly carbon dioxide (96%) and nitrogen (3.5%), with trace amounts of carbon monoxide, sulfur dioxide, water vapour, argon, and helium making up the other 0.5%. 
  • Venus is one of only two planets in our solar system that doesn't have a moon (the other being Mercury). Venus is unusual because it spins the opposite direction of Earth and most other planets. 
  • It takes 243 Earth days to rotate on its axis, which is by far the slowest of any of the major planets.
  • It takes 225 Earth days for Venus to go all the way around the Sun. That means that a day on Venus is a little longer than a year on Venus.
  • Venus is highly visible from Earth due to its reflective clouds. In the sky, Venus appears as a brilliant white object that is one of the brightest natural things in the night sky.