Georges Theodorakakis

Georges Theodorakakis

Georges Theodorakakis
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Wolf-Rayet Nebula is a nebula which surrounds a Wolf-Rayet star. There are different types of WR-nebula, based on their formation mechanism: 1.HII regions 2.ejecta-type nebulae 3.wind-blown bubbles 4.neutral hydrogen voids and shells (may be associated gas). The nebula shown is a 'wind-blown bubbles' type.

A Wolf-Rayet Bubble Nebula surrounds a Wolf-Rayet star. There are different types of WR-nebula, based on their formation mechanism: regions nebulae bubbles hydrogen voids and shells (may be assoc. The nebula shown is a 'wind-blown bubbles' type

Researchers have discovered a monster black hole that appears to be the most massive found to date, as massive as 21 billion suns. This is one of two black

An artist’s conception of stars moving in the central regions of a giant elliptical galaxy that harbors a supermassive black hole. CREDIT: Gemini Observatory/AURA artwork by Lynette Cook Related to.

The Dandelion Cluster is a group of stars located 5000 light years away from us, backdropped by the center of the galaxy. This cluster collapsed from a large gas cloud about 200 million years ago and weighs about 300 solar masses. Remnants of the cloud are visible, blocking light from the stars behind them. There are so many stars….

The Dandelion Cluster is a group of stars located 5000 light years away from us, backdropped by the center of the galaxy