Astronomy Picture of the Day . ... New stars, fast jets, and shocked gas clouds all occupy Orion A, a giant molecular cloud just south of the Orion Nebula. The bright object visible below and slightly left of center of this recently released picture is the reflection nebula NGC 1999. Supernova 1994D and the Unexpected Universe . ... Near its first quarter phase, the bright Moon.. ... Zal Patera on Jupiter's Moon Io . ... Abell 2142: Clash of the Galaxy Clusters . ... The Pipe Dark Nebula . ...