May 13, 2021: Venus, Mercury, the crescent moon, and Mars are in the western sky after sunset.
May 12, 2021: Thirty minutes after sunset, the razor-thin moon is 1.2° to the left of brilliant Venus. This is the closest grouping of the moon and Venus during this evening appearance of the brilliant planet. Mercury is 9.1° to the upper left of Venus. Mars maintains its eastward march in Gemini. Sirius and Aldebaran are near their heliacal settings, their final appearances in the evening sky for the year.
May 11, 2021: The planet parade continues today. Five planets are on display. Bright Jupiter and Saturn are in the southeastern sky before sunrise. After sundown, brilliant Venus, Mercury, and Mars are in the western sky. The moon is at its New phase and at apogee today.
May 8, 2021: Five planets are visible during morning and evening appearances. Jupiter and Saturn are visible before sunrise. Daylight interrupts the viewing until evening, when Venus, Mercury, and Mars are visible in the west after sundown.
May 7, 2021: The planets and moon parade across the sky today. Jupiter and Saturn are visible before sunrise in the southeast. The moon can be seen closer to sunrise. After sunset Venus, Mercury, and Mars are in the west-northwest.
May 6, 2021: During a 24-hour period, the five bright planets and the moon are visible. Before sunrise this morning, Saturn, Jupiter, and the crescent moon are lined up in the southeast. After sunset, brilliant Evening Star Venus is visible after sunset. As the sky darkens Mercury, then Mars, appears in the western sky.
May 5, 2021: The crescent moon, bright Jupiter and Saturn lineup in the southeast before sunrise. One hour before sunup, the moon is low in the sky with bright Jupiter to its upper right. Saturn is to the upper right of Jupiter. Jupiter is brighter than all the stars in the sky. Saturn is brighter than the stars in the immediate region after the Jovian Giant.
May 4, 2021: This morning the moon is near Jupiter and Saturn before sunrise. Look about an hour before sunup. Bright Jupiter is to the upper left of the thick lunar crescent, while Saturn is to the upper right.
May 3, 2021: The slightly gibbous moon is near Saturn this morning before sunrise. The lunar orb is 6.8° to the lower right of the Ringed Wonder. Jupiter is to the lower left of Saturn.
During May 2021, Mars marches across the starfields of Gemini. The planet is visible in the western sky after sunset. Early in the month, Mars is near the feet of Castor. Mars moves through the constellation diagonally from lower right to upper left. It ends the month passing Pollux.