planets

Uranus is blue-green in color due to the methane in its atmosphere, which is made up mostly of hydrogen and helium. The planet is often referred to as an ice giant, since at least 80% of its mass is a mixture of water, methane, and ammonia.

Advances in seismology have allowed us to learn a lot about the Earth and its layers. Each layer has different properties, compositions and characteristics that affect key processes on our planet.

Did you know that Venus is similar to Earth in size, mass, and composition?

Uranus' atmosphere is made up mostly of hydrogen and helium. Unlike Jupiter and Saturn, these light gases are only found on the outer edges of the planet.

Pluto's atmosphere is made up of nitrogen, methane, and carbon monoxide. . However, the atmosphere is most likely to change as Pluto orbits the Sun.

Venus's average temperature is 462 degrees Celsius, although it changes as one travels through the atmosphere. Temperatures are coldest in the upper part of the atmosphere, ranging from minus 43 to minus 173 degrees Celsius.

Astronomers are looking for a ninth planet that could exist within the solar system.

The best week to see Mars. Did you know? We won't have this chance to see it brighter and bigger for 15 years.