10 huge space objects
Of course, the oceans are huge and mountains impress with their value. And seven billion people is a lot, but still. Since we all live on planet Earth (whose diameter is 12 742 km), it is easy to forget how insignificant we really are small. All we need to do is look up at night, the sky, and realize that we are just a bunch of dust in the immeasurable vast Universe.
10. Jupiter. The largest planet (142 984 kilometres in diameter)
Jupiter – the largest planet of our Solar System. Ancient astronomers named Jupiter after the main Roman God. Jupiter is the fifth most close planet to the Sun. The atmosphere of Jupiter consists of about 84 percent hydrogen and about 15 percent helium, with small amounts of acetylene, ammonia, ethane, methane, phosphine, hydrogen and water vapor. Jupiter has a mass 318 times the mass of Earth and a diameter 11 times larger than the diameter of the Earth. The mass of Jupiter is 70% of the total mass of all other planets of our Solar System. The volume of Jupiter is large enough that it could fit 1300 planets the size of Earth. The planet has 63 known satellites (moons) but most of them have very small sizes, and disappear.
9. Sun. The largest body in our Solar System (1 391 980 km in diameter)
The sun (yellow dwarf star) is the largest body in our Solar system. It sumergible 99.8% of the total mass of the Solar system Jupiter contains most of the remaining mass. The sun, currently has about 79% hydrogen and 28% helium by mass everything else (“metals”) amounts to less than 2%. This changes slowly over time as the Sun converts hydrogen into helium in its core. The conditions in the sun’s core (approximately the inner 25% of its radius) are extreme. The temperature is 15.6 million Kelvin and the pressure is 250 billion atmospheres. The power of the Sun (about 386 billion megawatts) is produced by nuclear fusion reactions. Every second about 700 000 000 tons of hydrogen into about 695 000 000 tons of helium and 5,000,000 tons of energy in the form of gamma rays.
8. Our Solar System. 15×1012 km in diameter
Our Solar System consists of one Central star, the Sun, and nine planets: mercury, Venus, Earth, Saturn, Uranus, Neptune and Pluto Pluto no longer a planet? . several moons, millions of rocky asteroids Asteroid: brought life to Earth or destroy it? and billions of icy comets Comet: the longer you study, the more mysteries .