Astronomy Picture of the Day

Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.

2022 October 23
The featured image shows a landscape of narrow triangular rocks
below a night sky that features the band of the Milky Way arching
overhead. Connecting the land to the sky is a bright of diffuse
zodiacal light.
Please see the explanation for more detailed information.

Milky Way and Zodiacal Light over Australian Pinnacles
Image Credit & Copyright: Jingyi Zhang

Explanation: What strange world is this? Earth. In the foreground of the featured image are the Pinnacles, unusual rock spires in Nambung National Park in Western Australia. Made of ancient sea shells (limestone), how these human-sized picturesque spires formed remains a topic of research. The picturesque panorama was taken in 2017 September. A ray of zodiacal light, sunlight reflected by dust grains orbiting between the planets in the Solar System, rises from the horizon near the image centre. Arching across the top is the central band of our Milky Way Galaxy. The planets Jupiter and Saturn, as well as several famous stars are also visible in the background night sky.

Tomorrow's picture: red andromeda


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