Image of RCW 120 Nebula Shows Expanding Bubble of Ionized Gas
In this color composite image of the RCW 120 nebula (above), an expanding bubble of ionized gas, about ten light-years across, is revealed. It is…
In this color composite image of the RCW 120 nebula (above), an expanding bubble of ionized gas, about ten light-years across, is revealed. It is…