Found the source: https://www.mikemezphotography.com/blog/2018/6/13/lava-the-milky-way-the-moon-mars-saturn-and-an-iridium-flare-in-one-image

From their post:

Yes, it’s possible. I did indeed capture what you see above in one shot. Although some of the Internet seems to disagree, it’s true. What you see above is the Milky Way, the moon, Mars, Saturn, an iridium flare, and lava from the Kilauea Volcano of Hawaii. I took this image during my visit to the Big Island of Hawaii in September of 2016 to document the 61G lava flow. I never imagined I’d walk away with such a scene, but the camera gods were watching over me that day. So, before this image gets torn apart by those who think it’s not real, I’d like to present the RAW image to you below. This image was shot on a Nikon D810 with a Nikon 14-24mm lens. Settings were F2.8, 25” at ISO 2500.

Do exposure/focus stacked images count as composite? Because that definitely is stacked, if it’s real.