7 amazing images of Nebula captured by NASA
The Twin Jet Nebula: The Twin Jet Nebula, or PN M2-9, is a striking example of a bipolar planetary nebula. The Hourglass ...
6 fascinating nebula images captured by NASA Hubble Space Telescope
M2-9 is a striking example of a "butterfly" or a bipolar planetary nebula. Another more revealing name might be the "Twin Jet ...