Mother: Maye (Haldeman) Musk, nutritionist and model
Talulah Riley (2013-present, filed for divorce for the second time in March 2016; 2010-2012
, divorced for the first time); Justine (Wilson) Musk (2000-2008, divorced)
Children: with Justine (Wilson) Musk: Nevada, died at 10 weeks; twins Griffin and Xavier; triplets Damian, Saxon and Kai
Education: Attended Queen's University in Kingston, Ontario, Canada, 1990-1992; University of Pennsylvania, B.S. in economics and B.A. in physics, 1995; briefly attended Stanford University in 1995
CEO and CTO of Space Exploration Technologies (SpaceX), a commercial space exploration company.
CEO and product architect of electric automaker Tesla Motors.
Chairman of solar power company SolarCity, and also its largest shareholder.
Chairman of Musk Foundation, an organization supporting research on renewable energy, human space exploration and pediatrics.
At age 12, sold his code for a video game called "Blastar" to a computer magazine for $500.
1995 - Musk co-founds Zip2 Corp., a company that develops online city guides.
1999 - Sells Zip2 to Compaq for $307 million in cash.
March 1999 - Co-founds X.com, an online banking and financial services company.
March 2000 - X.com merges with Confinity, and is renamed PayPal in 2001.
June 2002 - Musk founds SpaceX, with the intention of decreasing the cost and increasing the accessibility of space travel.
October 2002 -
EBay acquires PayPal for $1.5 billion, with Musk pocketing $165 million.
February 2004 - Musk leads Tesla Motors' initial round of investment funding, and joins the company as chairman of the board.
October 2008 - In addition to serving as board chairman, becomes CEO and product architect of Tesla Motors.
May 25, 2012 -
SpaceX's unmanned Dragon spacecraft makes history as the first private capsule to connect to the International Space Station (ISS)
May 31, 2012 -
After delivering more than 1,000 pounds of cargo, including food, clothing, computer equipment and supplies for science experiments to the ISS, the first successful commercial mission ends with the SpaceX Dragon capsule splashing down about 560 miles off Baja California
. Musk declares the flight a "grand slam."
November 2013 -
Named Fortune's Businessperson of the Year.
December 11, 2015 -
Along with other big name technology sponsors, announces plans to invest in the non-profit artificial intelligence research center OpenAI.
March 2016 -
Tied for number 94 on Forbes' The World's Billionaires list
, with a net worth of $10.7 billion.
April 8, 2016 - For the first time, SpaceX successfully lands its Falcon 9 rocket on a drone ship.