Amazon's Always Home Cam: The Ring drone takes flight, but sales are invite-only

In today's top stories, Amazon's $250 Always Home Cam is available for purchase, but sales are invite-only, a strategy perhaps more telling than it seems. In other Amazon news, the e-commerce giant also announce Astro, the autonomous home robot, at its Tuesday event. And finally, a warehouse-sized asteroid sneaks up on Earth by hiding near the sun.