What is Venus Made Of?

by Fraser Cain on May 12, 2008

Want to stay on top of all the space news? Follow @universetoday on Twitter


Venus is often called Earth’s twin planet. And when it comes to the composition, Venus is very similar to Earth. But it does have a few significant differences.

The diameter of Venus is just 650 km less than the Earth’s, and its mass is 81.5% of planet Earth.

Looking inside Venus is much harder. Here on Earth, scientists probe the structure of the Earth’s core by studying how seismic waves from earthquakes bounce off the interior of the planet. Only a few landers have reached the surface of Venus, and they didn’t last long.

Since Earth and Venus have similar size and density, scientists assume that Venus has a similar internal structure to Venus, with a core, mantle, and crust. The interior of Venus is probably at least partially liquid.

One big difference between Earth and Venus; however, is the fact that Venus has no plate tectonics. This is probably because the surface and atmosphere of Venus are so dry and hot. This reduces the amount of heat lost from the interior of the planet, and prevents it from cooling. This might also explain why Venus doesn’t have an internally magnetic field; such as the one generated by Earth.

About 

Fraser Cain is the publisher of Universe Today. He's also the co-host of Astronomy Cast with Dr. Pamela Gay.

Tori December 2, 2008 at 7:30 AM

Pluto is not a planet because it is to far awat from the Sun and other planets…….

Yael Dragwyla December 3, 2008 at 11:53 PM

Goddess on the mountain top
Burning like a silver flame
The summit of beauty and love
And Venus was her name

She’s got it
Yeah, baby, she’s got it
I’m your Venus, I’m your fire
At your desire
Well, I’m your Venus, I’m your fire
At your desire

Her weapons were her crystal eyes
Making every man a man
Black as the dark night she was
Got what no-one else had
Wa!

She’s got it
Yeah, baby, she’s got it
I’m your Venus, I’m your fire
At your desire
Well, I’m your Venus, I’m your fire
At your desire

Goddess on the mountain top
Burning like a silver flame
The summit of beauty and love
And Venus was her name

She’s got it
Yeah, baby, she’s got it
I’m your Venus, I’m your fire
At your desire
Well, I’m your Venus, I’m your fire
At your desire

dickmouth January 13, 2009 at 3:51 PM

Bahahhaah you guys are obsessed with venus!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

yahoo girl May 12, 2011 at 9:42 AM

thanks for doing my home work!

Comments on this entry are closed.

Previous post:

Next post: