Posts by 

John Jardine Goss

November full moon and Jupiter this weekend

The November full moon will fall overnight on November 26-27, 2023. Bright Jupiter will be nearby. And the Pleiades star cluster will lie in the moon's glare.

September full moon 2024 is a super Harvest Moon

The September full moon - the Harvest Moon supermoon - happens overnight on September 28-29, 2023. This full moon lies between Jupiter and Saturn.

August full moon: a Blue supermoon near Saturn

The August full moon occurs twice in 2023. Both are supermoons. The 1st full moon was August 1. The 2nd - also called a Blue Moon - is August 30-31.

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.