PKS285-02: A Young Planetary Nebula (Młoda Mgławica Planetarna)
How do planetary nebulae acquire their exquisite geometrical shapes? To investigate this, astronomers used the Hubble Space Telescope to image several young planetary nebulae. These nebulae are the outer envelopes of stars like our Sun that have recently been cast away to space, leaving behind a core fading to become a white dwarf. In this photograph in red H-alphacarb