Posts by 

John Jardine Goss

May full moon is the Flower Moon

The May full moon occurs near mid-day today, May 5. The moon looks full on the overnights of May 4, 5, and 6. Learn more about the Flower Moon.

April full moon – the Pink Moon – falls on April 5-6

The April 2023 full moon – overnight on April 5-6 – is the Pink Moon and lies near the star Spica in the constellation Virgo. Find star charts here.

Best of 2023: Night sky events not to miss

Best of 2023: Find the most magnificent night sky scenes that you won't want to miss, chosen for you by the editors of EarthSky. Planets, eclipses and more!

Castor and Pollux sink to the horizon in spring

Castor and Pollux, the brightest stars in Gemini the Twins, sink toward the horizon on spring evenings, disappearing from summer's night sky.

Venus and Jupiter conjunction: Look now

During the Venus and Jupiter conjunction, the two planets will appear only 1/2 degree or less apart just before sunrise. You can also spot Mars and Saturn.

Moon and Jupiter on February 2. Farewell, giant planet!

The moon and Jupiter are low in the twilight on the evening of Feb. 2, 2022. After this, Jupiter will slip into the sun's glare and be gone by late February.

Moon and 4 planets after sunset January 3 to 5

See the moon and four planets after sunset January 3 to 5, 2022. It'll be tough to spot Venus and Mercury. Jupiter and Saturn will be much easier.

Best of 2022: Night sky scenes not to miss

Best of 2022: Night sky scenes chosen for you by the editors of EarthSky that you won't want to miss. Mark your calendars now!

Watch for Mercury, too, as 2021 ends

Watch for Mercury, the sun's innermost planet, as 2021 ends. Bright Venus will be falling into the sunset glare. Mercury will be nearby.

Moon, Mars and Antares as 2021 ends

Moon, Mars and Antares: Start watching the east a few days before December 31, 2021, for red Mars and red Antares. On December 31, the moon will join the show.