Watch Venus and Jupiter converge on the horizon for the last time in 5 decades

If you have clear skies just after sunset on Saturday, August 27, look west to see Venus and Jupiter so close on the horizon they almost appear to merge into a single light.

This rare astronomical event is called an "appulse," which is when two celestial bodies appear from Earth's vantage point to approach each other as closely as possible — in this case, with less than one degree between the two planets.

Venus and Jupiter will not come this close again for nearly five decades — the next comparable conjunction will appear in 2065 — and Saturday's light show will be bright enough to view with the naked eye, weather permitting.

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