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Night Sky Festival in Joshua Tree National Park


Monday, July 22, 2024 by

The Night Sky Festival is an annual celebration of Joshua Tree National Park’s night sky, serving as a key fundraiser for Sky’s The Limit Observatory and Nature Center (STL) and Joshua Tree Residential Education Experience (JTREE), both non-profit organizations. The event will feature a variety of activities starting on Friday, October 4, including a nigh...


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Astronomy Picture of the Day

2026-04-07
IC 4592: The Blue Horsehead Reflection Nebula
IC 4592: The Blue Horsehead Reflection Nebula - 2026-04-07 - Image by Rabeea Alkuwari (NASA Astronomy Picture of the Day)
Image Credit: Rabeea Alkuwari
Do you see the horse's head? What you are seeing is not the famous Horsehead nebula toward Orion, but rather a fainter nebula that only takes on a familiar form with deeper imaging. The main part of the here-imaged molecular cloud complex is reflection nebula IC 4592. Reflection nebulas are made up of very fine dust that normally appears dark but can look quite blue when reflecting the visible light of energetic nearby stars. In this case, the source of much of the reflected light is a star at the eye of the horse. That star is part of Nu Scorpii, one of the brighter star systems toward the constellation of the Scorpion (Scorpius). A second reflection nebula dubbed IC 4601 is visible surrounding two stars just below the image center. The featured picture was taken from Sawda Natheel in Qatar. Jigsaw Nebula: Astronomy Puzzle of the Day

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