Temperature range +500°C to 15.7m°C (core)
Rotation about axis 25 days
The Sun is the brightest object in the sky and its immense gravity controls the motion of the entire Solar system.
A perfectly spherical ball that produces energy equal to 100 billion tons of dynamite exploding every second.
Recent discoveries have revealed that the Sun is full of all sorts of sounds.
A microphone cannot record these sounds because of the vacuum of space. However, they can be seen affecting the brightness and velocity of the Sun’s surface.
The NASA SOHO spacecraft was able to measure these changes and recreate the sound of the Sun.
• Food colouring
• Cling film
In this experiment cornflour was mixed with water and food colouring to create what is known as a non-Newtonian fluid (a fluid that can act as both a liquid or a solid depending on the pressure applied).
The fluid was then poured into a speaker cone before the SOHO audio recording of the Sun was played loudly through it.
The vibrations of the audio waves made the fluid come alive, mimicking the violent surface of the Sun.