SpacePluto must have liquid ocean or it'd look like an overripe peach If Pluto’s inner sea froze recently, we should see ridges popping up in the dwarf planet's outer shell. Since we don’t, it's probably still liquid ¿ìè¶ÌÊÓÆµ
SpaceRare cosmic balancing act makes Perseid meteor showers brighter The gravitational pulls of Saturn and Jupiter may make meteor showers more spectacular, and could explain 1993's "night of the howling dogs" ¿ìè¶ÌÊÓÆµ