... Astronomers have recently discovered that looking at dust along the plane of our Milky Way Galaxy is a bit like looking into a frothy glass of beer. The dust between stars in our galaxy.. ... The dark skies over the US states of Wyoming, Montana and the Dakotas were quite busy, as shown by this photograph featuring Comet Hale-Bopp. ... Spiral Galaxy M83 . ... Spiral galaxies contains many billions of stars, the youngest of which inhabit the spiral arms and glow strongly in blue light. ... April . ...