Astronomy Picture of the Day . ... Much was learned recently about Neptune's weather by the release last week of time-lapse pictures of the most distant gas giant in our Solar System. ... In this just-released nighttime picture of Jupiter's moon Io, the red spots clearly show Io's current volcanically active regions. ... Mir Over New Zealand . ... The Large Cloud of Magellan (LMC) . ... Jupiter's moon Europa has smoothest surface in the solar system and is composed mostly of cracked water-ice. ...