Light-year Light-year The light-year is a unit of length used to express astronomical distances and measures about 9.46 trillion kilometres or 5.88 trillion miles. As defined by the International Astronomical Union (IAU), a light-year is the distance that light travels in vacuum in one Julian year (365.25 days). Because it includes the word "year", the term light-year is sometimes misinterpreted as a unit of time. The light-year is most often used when expressing distances to stars and other distances on a galactic scale, especially in nonspecialist and popular science publications. The unit most commonly used in professional astrometry is the parsec
Trillion Fund Trillion Fund Trillion Fund is a equity crowdfunding platform that raises money for environmental and social projects. It was founded in 2011 by Dr. Michael Stein and Phillip Riches. The platform was launched in response to warnings given by the United Nations that it will take US$1 trillion of investment annually to prevent the world from warming by more than 2 degrees. This one trillion figure gave rise to the company's name. Trillion is privately owned. Vivienne Westwood became a majority stakeholder in March 2013, and Albion London took a stake in April 2014. Mark Stevenson has a role in