SAN FRANCISCO — Elon Musk returned to the stand for a third day on Jan. 24 in federal court in San Francisco to testify in a trial stemming from a class action lawsuit.

A Silicon Valley judge began questioning potential jurors Jan. 17 to hear allegations that Elon Musk cheated Tesla investors by claiming in a 2018 tweet that he had lined up financing to take the electric automaker private.

California regulators on June 2 gave a robotic taxi service the green light to begin charging passengers for driverless rides in San Francisco, a first in a state where dozens of companies have been trying to train vehicles to steer themselves on increasingly congested roads.

SAN RAMON, Calif. — General Motors’ self-driving car company is sending out vehicles with nobody behind the wheel in San Francisco as it navigates its way toward launching a robotic taxi service that would compete against Uber and Lyft in the hometown of the leading ride-hailing services.

The service still being developed by GM’s Cruise subsidiary will rely on a boxy, electric-powered vehicle called “Origin” that was unveiled late Jan. 21 in San Francisco amid much fanfare.

SAN FRANCISCO — Elon Musk is taunting the government regulators who threatened to oust him as CEO of electric carmaker Tesla just days after he settled a case alleging he duped investors.