It's not just billionaires going to space these days.

It's also whiskeys.

First there was Mystic Galactic, a bourbon from North Carolina's Mystic Farm & Distillery. And now there's Strato Whiskey, a new project from Denver's Mile High Spirits that sent a barrel into the stratosphere. It's back on earth now, so you can score a bottle of the space-aged whiskey for yourself.

To make it happen, Mile High Spirits partnered with World View, the team behind the space balloon that's aiming to take tourists 100,000 feet up into the air. Early in the morning on July 15, 2021, they put a barrel of their flagship Fireside Whiskey on a test flight out of Page, Arizona. According to the company, the barrel experienced near-vacuum conditions and temperatures ranging from 90 degree heat on the ground to as low as -76 degrees in the balloon, reaching an apogee of 106,627 feet.

Extreme changes in temperature can encourage interaction between the whiskey and the wood of the barrel, increasing a spirit's flavor and complexity. And apparently, ultraviolet rays permeated the barrel, coaxing out more compounds and notes of vanilla, caramel and oak tannins. 

Of course, the whiskey was further aged back on earth, so it's hard to know exactly how much that trip to the edge of the atmosphere impacted the final product. But you can taste it anyway and try to find out.

Strato Whiskey becomes available on August 22 in 50 mL tasting bottles, which can be purchased online ($350) or on-site in the brand's Denver tasting room for $300. Sure, it's not cheap. But bottles do come with special packaging, including a shuttle-shaped cocktail shaker. 

The best part: With a size that small, you don't have to share it.