Images of Pluto are still being beamed back to Earth – go to http://phys.org/print375951601.html
Elsewhere, images of the centre of the Milky Way show a huge cloud of gas and thousands of stars. However, a little out from the centre is what is called the 'Central Molecular Zone' where eighty per cent of that gas is located
– a reservoir of tens of millions of solar masses of material which feeds giant molecular clouds and massive star forming clusters. Some of these clouds are bereft of star – completely barren. This puzzles astronomers.
The article is published in the Monthly Notices of the Royal Astronomical Society (Feb 2016) but see http://phys.org/print375952057.html