Astronomy Picture of the Day . Pluto: The Frozen Planet . ... The Hubble Space Telescope imaged Pluto and its moon Charon in 1994. ... In buildings eight stories tall rest mirrors ten meters across that are slowly allowing humanity to map the universe. ... Seen from the Pik Terskol Observatory in the northern Caucasus mountains, comet Hale-Bopp and the bright stars of the constellation Perseus hang above the snowy, moon-lit landscape. ... M2-9: Wings of a Planetary Nebula . ...