... Aurora Over Clouds . ... An oxygen molecule, for example, will glow in a green light when reacquiring an electron lost during a collision with a solar particle. ... Stars and Dust of the Lagoon Nebula . ... The Galactic Center in Infrared . ... In visible light, much of the Galactic Center is obscured by opaque dust. ... The Crab Pulsar, a city-sized, magnetized neutron star spinning 30 times a second, lies at the center of this composite image of the inner region of the well-known Crab Nebula. ...