... Venus and Jupiter Over Belfast . ... In a slow day-by-day march, Jupiter sank into the sunset horizon while Venus remained high and bright. ... Rocks from space hit Earth every day. ... Two sulfurous eruptions are visible on Jupiter's volcanic moon Io in this color composite Galileo image. ... Bright Galaxy M81 . ... Big and beautiful spiral galaxy M81, in the northern constellation Ursa Major, is one of the brightest galaxies visible in the skies of planet Earth. ... Jupiters Rings Revealed . ...