"Rare Planetary Alignment: Mercury, Venus, Mars, and Uranus Align on April 11"
Starting Tuesday, four planets - Mercury, Venus, Mars, and Uranus - will align in the night sky, with the first three visible to the naked eye and Uranus requiring binoculars or a telescope. The alignment should be visible through April 18, depending on the clarity of the skies. There are four types of planetary alignments, and upcoming planetary events include small and large alignments of various planets in the sky sector.