Our BIG brother : Jupiter

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Jupiter the largest planet in our solar system and the fifth planet from the sun. With a radius of about 69 911 km it is 5.2 astronomical units away from our star, the sun. Jupiter is tilted 3 degrees, which means it’s almost rotating straight in its orbit, with speeds of 43,000 km/ hour.
Jupiter is mostly made up of hydrogen and helium. Inside the planet there’s a lot of pressure and the temperature reaches 145 degrees Celsius, the pressure and temperature is so great that it actually compresses the hydrogen gas and turns it into liquid hydrogen. This liquid then forms large oceans made of hydrogen which then makes Jupiter the mastermind of making the largest oceans of liquid hydrogen in the solar system. Scientists think these oceans may carry down about halfway to the planet's centre, the pressure in this zone could maybe even greater that electrons are squeezed off the hydrogen atoms, making this liquid, electrically conducting like metal. Due to Jupiter’s fast rotation it is thought to drive electrical currents in this part of the planet, these currents then generate the planet's powerful magnetic field. We still don’t know, deeper down, Jupiter has a central core of solid material or if it may be a thick, super-hot and dense core. It could be up to 50,000 degrees Celsius down there, made mostly of iron and silicate minerals.
Jupiter as a gas giant doesn’t really have a true surface, in fact it is basically swirling gases and liquids, with no solid surface to land a spacecraft,it will then it will have to fly, but this will not work out either because of these extreme pressure and temperature on Jupiter it will destroy the space craft’s delicate and fragile equipment, this is not the only thing in fact the space craft will get burned and crushed to pieces even before trying to fly around its atmosphere.
Jupiter has a beautiful colourful cloud bands and spots. It is arranged in three cloud layers in its "skies" that, taken together, span about 71 kilometres / hour. The top cloud layer is assumed to be made of ammonia ice, while the middle layer is likely made of ammonium hydrosulfide crystals. The innermost layer may be made of water ice and vapour.
The rich vibrant colours we see in thick bands across Jupiter might be plumes of sulfur and phosphorus-containing gases rising from the planet's warmer interior. Its fast rotation might create strong jet streams, separating its clouds into dark belts and bright zones across long stretches.
Jupiter's spots can persist for many years. Its winds can reach up to 539 kilometres / hour at the equator. The Great Red Spot, one of Jupiter’s famous spot is a swirling oval of clouds twice as wide as Earth, which has been observed for centuries. Recently, three smaller ovals merged to form called the Little Red Spots, which is about half the size of its larger cousin.
The Jovian magnetosphere is the region of space influenced by Jupiter's powerful magnetic field. It balloons 1 to 3 million kilometres toward the Sun, and tapers into a tadpole-shaped tail extending more than 1 billion kilometres behind Jupiter, as far as Saturn's orbit. It is 16 to 54 times as powerful as that of the Earth.
NASA's Voyager 1 spacecraft Discovered the planets rings system in 1979. The ring systems is composed of small, dark particles and are difficult to see except when backlit by the Sun. Data from the Galileo spacecraft indicate that Jupiter's ring system may be formed by dust kicked up as interplanetary meteoroids smash into the giant planet's small innermost moons.
Jupiter has 53 confirmed moons and 26 provisional moons awaiting confirmation of discovery.
Jupiter's four large moons—Io, Europa, Ganymede and Callisto—were first observed by the astronomer Galileo Galilei in 1610 using an early version of the telescope. These four moons are known today as the Galilean satellites. Io is the most volcanically active body in the solar system. Ganymede is the largest moon in the solar system is bigger than the planet Mercury. Callisto’s very few small craters indicate a small degree of current surface activity. A liquid-water ocean with the ingredients for life may lie beneath the frozen crust of Europa, making it a tempting place to explore.

NASA launched missions to Jupiter and they are the following with their launch dates:
Pioneer 10-3 March 1972
Pioneer 11-6 April 1973
Voyager 2 -20 August 1977
Voyager 1-5 September 1977
Galileo-18 October 1989
New Horizons-19 January 2006
NASA accompanied by the European Space Agency also launched space crafts they are the following with their launch dates:
Ulysses-6 October 1990
Cassini-15 October 1997
NASA has one orbiting space probe at Jupiter, Juno which was launched on 5 August 2011.