Elon Musk

Updated 11:30 p.m. ET

Twitter says it was the victim of a "coordinated social engineering attack" by unspecified individuals who targeted Twitter employees with access to sensitive internal administrative systems.

The breach implicated the accounts of some of the richest and most famous people on the social media platform, including Jeff Bezos, Elon Musk, Bill Gates, former President Barack Obama, Joe Biden, Kanye West and others.

Electric carmaker Tesla has resumed production at its Fremont, Calif., plant — in defiance of local health authorities.

You can thank brainy billionaire Elon Musk's Hyperloop proposal for bringing electro-magnetic-powered transportation and the linear induction motor back into the public consciousness.

The Hyperloop is a system for really-really rapid transit. If built, Musk claims it can carry people about 800 miles per hour, which could get you from Los Angeles to San Francisco in about 30 minutes.