The Republic of Palau is an island country in the western Pacific, in free association with the United States. In one way or another, the country has been under US administration since it was established, and has never had its own separate currency - it has always used the US Dollar. However, Palau allows some foreign mints to issue coins under its authority; these are denominated in US Dollars but are only legal tender in Palau, so can in a way be considered to be in "Palau Dollars", even though such a currency does not officially exist.
The coins are usually dedicated to historical or general popular culture themes not related to the country itself. Many of them are in standard bullion sizes, including the large three troy ounces (3oz) of silver format.
The Mint says about this coin:
The Pillars of Creation & Black Hole coin is the third release in the Space; the Final Frontier series. On the coin a beautiful nebula called Pillars of Creation, accompanied with a black hole put into relief using the enhanced smartminting technology.
The Universe is far and wide, containing many wondrous phenomena. One of these phenomena are the black holes, often at the centre of galaxies. They’re objects of huge mass, pulling anything in that goes beyond the event horizon for it to never return. It wasn’t until recently that our understanding of these objects was mostly science fiction, but with new discoveries humanity has been getting a step closer towards unlocking the secrets that the black holes hold.
The Pillars of Creation is a set of pillars shaped interstellar gas and dust formations in the Eagle Nebula. The name originates from the fact that the gas and dust, together, form new stars, referring towards the creation part. You could say that the pillars depict the starting stage of the stars as we know them today, for them to eventually end up in the black holes.