The Heart and Soul Nebulas . ... Possibly not, but that is where two bright emission nebulas nicknamed Heart and Soul can be found. ... Both nebulas shine brightly in the red light of energized hydrogen . Several young open clusters of stars populate the image and are visible above in blue, including the nebula centers. ... Studies of stars and clusters like those found in the Heart and Soul Nebulas have focussed on how massive stars form and how they affect their environment. ...