The first practical telescope was invented in the Netherlands in 1608, and Galileo Galilei was the first person to use one to study the night sky. In 1611, Johannes Kepler published his first telescopic observations of the night sky. The largest telescope in the world is the Gran Telescopio Canarias, located in the Canary Islands. The Hubble Space Telescope was launched into orbit in 1990 and has made many important discoveries. The James Webb Space Telescope is scheduled to launch in 2018 and will be the largest space telescope ever built.
Jupiter is the fifth planet from the sun and the largest planet in the solar system. It is a gas giant made up of hydrogen and helium. Jupiter has the shortest day of any planet in the solar system and the largest number of moons. Jupiter also has a faint ring system composed of dust particles.
The most powerful telescopes ever made are the James Webb Space Telescope, the Large Synoptic Survey Telescope, the European Extremely Large Telescope, and the Thirty Meter Telescope. These telescopes will allow us to see the universe in unprecedented detail.
Jupiter is the largest planet in the Solar System, with a mass two-and-a-half times that of all the other planets combined. It has the shortest day of any planet , with a day lasting only 10 hours. Jupiter has 63 moons, with the four largest being Io, Europa, Ganymede, and Callisto. Jupiter's Great Red Spot is a giant storm that has been raging for centuries.