Skygazers like me have something to look forward to Friday, when the seven other planets in our solar system will be visible, with a little help, in a rare event.
Mercury, Venus, Mars, Jupiter and Saturn will all be visible without any optical assistance. The planets are always actually lined up, but we just can't see them all at once. The planets are always in a line called an ecliptic – the plane where they orbit the Sun. As the planets race around the Sun at different speeds, sometimes they line up on the same side of the Sun, appearing closely together in the night sky. The best time to see the planets will be shortly after sunset on Friday.
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