Aerion, founded by billionaire Robert Bass, plans to deliver a business jet with top speeds of 1.4 times the speed of sound.
The airline has seen a sharp drop in bookings at its Newark, N.J., hub following new quarantine rules for travelers.
United Airlines will begin blocking middle seats, after Delta Air Lines did the same.
Airlines are barred from slashing jobs through Sept. 30 under the terms of a $50 billion government bailout.
Virgin Orbit is trying to start producing a simple type of medical ventilator at a rate of several hundred a week.
At some point, Virgin Galactic could indeed become a very profitable company - but it isn't now, even as investors pour in.
Boeing's CEO is being pressured to resign amid problems with the 737 Max.
Customers will have three days of training to prepare for the G-forces and learn how to move in microgravity.
The planes have remained full even as U.S. airlines add new flights, larger planes and more seats.
Record travelers, grounded aircraft and reassigned security personnel could lead to a crush at U.S. airports.