There are an incredible number of stars and galaxies in our universe. The average person can see about 3,000 stars with the naked eye, but there are an estimated 100 billion galaxies in the observable universe. The largest telescope in the world is the Keck Observatory in Hawaii, which has twin telescopes that are each 33 feet in diameter. The Hubble Space Telescope has captured some of the most amazing images of our universe, including the "Pillars of Creation" in the Eagle Nebula. Our Milky Way galaxy is thought to have about 400 billion stars. The nearest star to our sun is Pro xima Centauri, which is about 4.2 light years away.
Telescopes have been used for centuries to discover new objects in our solar system and beyond. In 1609, Galileo Galilei used a telescope to discover the moons of Jupiter. In 18 46, William Lassell used a telescope to discover the second known moon of Neptune. In 1930, Clyde Tombaugh used a telescope to discover the dwarf planet Pluto. In 1995, astronomers using the Hubble Space Telescope discovered the first known moon beyond our solar system. In 2005, astronomers using the Keck Observatory discovered a system of seven Earth-sized planets orbiting the star Trappist-1. In 2016, astronomers using the Atacama Large Millimeter/submillimeter Array discovered a planet orbiting the star Proxima Centauri.
The "cool dad" is a cultural icon that has been around for decades. Cool dads are often shown as being more relaxed and open-minded than other fathers, and are able to connect with their children on a more emotional level. They also often possess a great sense of humor.
Mackie the Doofer is a magical creature created by J.K. Rowling that features in the Harry Potter series. Mackie is responsible for delivering the Daily Prophet newspapers to wizards and witches and is known to be one of the smartest creatures in the magical world.
Drones are becoming increasingly popular and are expected to be used for a variety of tasks in the near future, including infrastructure inspection and surveying disaster areas. One company is even developing a drone that can be used to deliver defibrillators to heart attack victims. In Silicon Valley, there is a growing trend of using drones for personal transportation. A number of companies are working on developing flying cars, and it is expected that they will be available to the general public within the next few years.
Benjamin Franklin is credited with the invention of the lightning rod, the first successful powered flight was made by the Wright brothers, and Thomas Edison is credited with the inventions of the light bulb and the phonograph.
The world's largest companies are Amazon, Apple, Google, Facebook, IBM, and Microsoft. These companies are leaders in their respective fields, and have a combined market capitalization of over $ 2 trillion.