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Astronomers study a lot of gorgeous things, but nebulae might be the most breathtakingly beautiful of them all. Nebulae are clouds of gas and dust in space. They can glow on their own or reflect light from nearby stars. When they glow it’s usually predominantly red from hydrogen and green from oxygen, and when they reflect and scatter light it’s from massive hot stars, so they look blue. Stars are born in some nebulae, and create new ones as they die. Some nebulae are small and dense, others can be dozens or hundreds of light years across.
Първа ефирна дата : Jan 15, 2015
Дата на последния ефир : Dec 24, 2015
Епизод : 46 Епизод
Сезон : 1 Сезон
Времетраене: 12 минути
Студио: YouTube
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В ролите: Phil Plait
Екипаж: Phil Plait (Writer)
