This is exactly what I like to listen to when working, especially on fiction projects like "Screaming Metal". It's relaxing and let's my brain wander.
I grew up with Hearts of Space as my mother was huge into the New Age music wave of the 80s. So Kitaro, Paul Horn, and Vangelis were familiar to me as a teen. Not that I truly appreciated them as much as I should have, but they did offer me an occasional oasis of tranquility that I still enjoy today (and thankfully, much more often).
This video is entitled "Space Ambient Mix 1 - Across the Universe - Meditation Music" and the link gives the artists in the compilation as Jonn Serrie and Carbon Based Lifeforms, both of whom gave their permission for uploader JediMaster to use their work.