Tesla Inc. has unveiled cheaper, pared-down versions of its two best-selling electric vehicles, in a bid to re-energize sales amid an expected slump after the end of U.S. tax credits for EV buyers.

A skydiver plummeted 11,000 feet to the ground after both of his parachutes failed, fracturing his pelvis, but miraculously survived the fall over the Nevada desert. Mitchell Deakin, 25, who had flown ...