The galactic year, also known as a cosmic year, is the duration of time required for the Solar System to orbit once around the center of the Milky Way Galaxy. Estimates of the length of one orbit range from 225 to 250 million "terrestrial" years. According to Nasa, the Solar System is traveling at an average speed of 828,000 km/h (230 km/s) or 514,000 mph (143 mi/s), which is about one 1300th of the speed of light. If you could travel at that speed in a jet aircraft along the equator, you would go all the way around the world in approximately 2 minutes and 54 seconds. According to NASA, even at this incredible speed, it still takes the solar system 230 million years to orbit the center of the Milky Way Galaxy one time.

The galactic year provides a conveniently usable unit for depicting cosmic and geological time periods together. By contrast, a "billion-year" scale does not allow for useful discrimination between geologic events, and a "million-year" scale requires some rather large numbers.

Sir Richard Charles Nicholas Branson (born 18 July 1950) is an English business magnate, best known for his Virgin Group of more than 400 companies.

His first business venture was a magazine called Student at the age of 16. In 1970, he set up an audio record mail-order business. In 1972, he opened a chain of record stores, Virgin Records, later known as Virgin Megastores. Branson's Virgin brand grew rapidly during the 1980s, as he set up Virgin Atlantic Airways and expanded the Virgin Records music label.

Branson is the 4th richest citizen of the United Kingdom, according to the Forbes 2011 list of billionaires, with an estimated net worth of US$4.2 billion.

Branson was born in Blackheath, London, the son and eldest child of barrister Edward James Branson (10 March 1918 – 19 March 2011) and Eve Huntley Branson (née Flindt). His grandfather, the Right Honourable Sir George Arthur Harwin Branson, was a judge of the High Court of Justice and a Privy Councillor. Branson was educated at Scaitcliffe School (now Bishopsgate School) until the age of thirteen. He then attended Stowe School until the age of sixteen. Branson has dyslexia and had poor academic performance as a student, but later discovered his ability to connect with others.