It is done by radiation.
No never as mechanical energy. It reaches mainly as light and heat
The energy that reaches the Earth from the sun is known as sunlight.
The light travel directly through the vacuum and reaches earth
Energy from the sun travels to the earth's surface is brought here by electromagnetic radiation. Once the radiation reaches the planet, most of it is converted to heat.
Waves of heat and light, called radiation, travel to earth.
the sun
Nearly all of the energy that reaches Earth's surface comes from the sun.
absorbed by earth's core
The Sun
The Sun's energy is given out mainly as "electromagnetic radiation". Light is a form of electromagnetic radiation. Heat is the main form the Sun's energy has when it reaches Earth, particularly the Earth's surface.
Energy from the sun to Earth travels as electromagnetic energy, or light energy.
half a billionth