[/caption] Astronomers working with the Subaru Telescope have released these new images of a “fireworks display” in a near-infrared image of the Helix Nebula, showing comet-shaped knots within. The Helix Nebula, NGC 7293, is not only one of the most interesting and beautiful planetary nebulae; it is also one of the closest nebulae to Earth, at … Continue reading "Happy Fourth of July!"