Nature’s magnificence unfolds in a rare sky show during April and May. The visible five planets that now are spread out in the western evening sky — Mercury, Venus, Mars, Jupiter and Saturn — are getting ready to converge in May. Early this month, look for Venus about 18 degrees above the western horizon as the sun sets. It can be seen between the constellations Pisces and Aries, and it appears to be about 20 degrees away from the dim red planet Mars. While Venus is lower in the sky than Mars, this will soon change. As April progresses, the exceptionally bright Venus and Mars move closer together. They are but 13 degrees apart in the western night sky by the middle of the month.