The sun is a star and is about halfway through its life. It is very large, much larger than Earth, and very hot. The sun emits a lot of energy, enough to power the world for a day. It can be dangerous, causing skin cancer.
The sun is an average sized star that is made up of mostly hydrogen and helium. It has a surface temperature of around 10,000 degrees Fahrenheit and is about 93 million miles away from Earth . It has been around for about 4.6 billion years and will eventually die in about 5 billion years.
Black holes are extremely dense objects from which no light can escape. They are formed when a star reaches the end of its life and collapses in on itself. The gravitational pull of a black hole is so strong that anything that gets too close to it will be pulled in and destroyed. Scientists are still learning a lot about black holes and there is much that we don't yet understand about them.
July 4, 1054 was the first time an astronomical event was observed and recorded by humans. On this date, a supernova was discovered in the constellation Taurus. The event was recorded by Chinese and Arab astronomers. 1610 was the first time a planet was discovered by humans when Galileo discovered Jupiter. In 1618, a comet was discovered by Hans Lippershey. The first asteroid was discovered by Giuseppe Piazzi in 1801.
Microsoft is the largest software company in the world and the home of the world's richest man, Bill Gates. The company has a long and interesting history, dating back to its first product, a Basic programming language interpreter, and its first office in Albuquerque, New Mexico.
A black hole is an astronomical object with a gravitational pull so strong that nothing, not even light, can escape from it. Black holes are believed to form when massive stars collapse at the end of their life cycles.
Bill Gates and Paul Allen founded Microsoft in 1975. They released the Altair 8800, the first personal computer, in 1975. The first version of Microsoft Windows was released in 1985. Microsoft Office was first released in 1989. The first Xbox console was released in 2001. The first Microsoft store opened in 2009.
Computers have a long and interesting history, dating back to the early 1600s. The first computers were mechanical devices, created to perform complex calculations. In the early 20th century, the first electronic computers were developed, and these were initially used for military purposes. Commercial computers were created in the 1970s, followed by the first personal computers in the 1980s.