(BostonGlobe) - The Coravin Wine Access System, set to go on sale today at the company’s website, is built of stainless steel and aluminum. It looks like NASA’s idea of a corkscrew. Only instead of a screw, there’s a Teflon-coated needle that easily pierces the cork. The device also contains a small canister of highly-compressed argon, which will preserve the wine indefinitely.By pressing a button, argon is injected into the bottle, pressurizing it. When the bottle is tipped, the wine comes streaming through the needle and out a small nozzle. When the needle is removed, the hole in the cork seals itself.