THE UNIVERSE

Earth is the third planet from the Sun and the fifth largest:

Radius: 6,371 km

Age: 4.54 billion years

Distance from Sun: 149,600,000 km

Mass: 5.972E24 kg

Population: 6.974 billion (2011) World Bank

The Sun's power (about 386 billion billion megaWatts) is produced by nuclear fusion reactions. Each second about 700,000,000 tons of hydrogen are converted to about 695,000,000 tons of helium and 5,000,000 tons of energy in the form of gamma rays.

                                                           

Antares is the 15th brightest star in the sky. It is more than 1000 light years away.