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Amazon’s new 9/year Prime Fresh program in L.A. also comes with the benefits of the regular Amazon Prime membership, including free two-day shipping, video streaming and Kindle book rentals. The program is launching via a 90-day no-extra-charge trial for existing Amazon Prime members.

Amid the spread of coronavirus, the MTA is running announcements on subway stations, buses and rail cars.

Amazon’s lack of a retail presence — while a huge advantage in the past — is a ?weakness at a time when the online and offline worlds are colliding in fascinating ways. (Starbucks’ digital push is a great example of this, as is Apple’s ever-expanding retail empire).

Amazon’s Jeff Wilke, CEO of the company’s Worldwide Consumer Business, made one of the biggest announcements of the week, unveiling a fully-electric drone that can fly up to 15 miles and deliver packages under 5 pounds in less than 30 minutes. Wilke also showed the array of different sensors that are built into the drones, in an effort to ensure safety during deliveries.

Ammonia, composed of hydrogen and nitrogen, is already produced en masse from fossil fuels and exported worldwide to make fertilizer. It maintains a liquid state at around minus 33 C, meaning it is much simpler and cheaper to transport than liquid hydrogen at minus 253 C.