From the Sarasota Herald Tribune, AP story

Five planets are currently arrayed across the evening sky in a spectacular night show that won’t be back for another three decades. During late March and early April, Mercury, Venus, Mars, Jupiter and Saturn - the five closest planets to Earth - should be easily visible at dusk, along with the moon.

“It is semi-unique,” said Myles Standish, an astronomer at Jet Propulsion Laboratory in Pasadena CA. “They are all on the same side of the sun and stretched across the sky, and that is very pretty.”

The planetary lineup will be visible to the naked eye every night for an hour after sunset. At the end of the year the same five planets will reunite for a few weeks, but in the pre-dawn hours. Standish said this particular planetary grouping may offer the best nighttime views until the year 2036.

The orbits of the five planets take them to the same side of the sun every few years or so. However, the conditions have to be just right for all five planets to be clearly visible at dusk or dawn. Mercury is often tough to catch. Even rarer are so-called alignments where the planets are clustered together in the sky. This is not one of those.

Stargazers should look to the western horizon just after sunset. Mercury, Venus Mars and Saturn will be lined up in the sky, with Jupiter close to the eastern horizon. They will span about 135 degrees. Saturn will be almost directly overhead.