Yes, the feature is something of a 'puff-piece', but I still thought it worth linking to. Great results from the Lumia - only a handful were shared on the Windows blog and at low-res on the page, but embedded below are two at higher resolution:
Impressive results anyway - yes, the Lumia 950/XL has excellent OIS, but for 4s exposures like the aurora one, you need a tripod and camera grip - there's no shame in accepting mechanical help if it's available!
PS. Stephen also mentions shooting the Grand Canyon and the American West on a Lumia 1020 - here's that feature, if you're interested.
PPS. See also some of my own photo features with the Lumia 950 family, pitching it against an iPhone 7 and against the Google Pixel.