Nombre total de pages vues

Affichage des articles dont le libellé est Astronomy - IC 4592:THE BLUE HORSEHEAD REFLECTION NEBULA. Afficher tous les articles
Affichage des articles dont le libellé est Astronomy - IC 4592:THE BLUE HORSEHEAD REFLECTION NEBULA. Afficher tous les articles

07/04/2026

Astronomy - IC 4592:THE BLUE HORSEHEAD REFLECTION NEBULA

 2026 April 7

A starfield surrounds a large nebula that is mostly brown
and blue and has an appearance reminiscent of the head of a horse.
This nebula is not the more famous Horsehead Nebula. 
Please see the explanation for more detailed information.

IC 4592: The Blue Horsehead Reflection Nebula
Image Credit & Copyright: Rabeea Alkuwari

Explanation: 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.

Santé/Médecine - CANCER : AVANCEES MAJEURES ET ESPOIR - LES CELLULES IMMUNITAIRES A L'ORIGINE DE CANCERS (1/2)

Une étude a exploré le lien entre l'inflammation chronique, le système immunitaire et le développement du cancer, notamment dans les int...