Hubble Telescope image of the Horsehead Nebula. Credit: T.A.Rector (NOIRLab/NSF/AURA) & Hubble Heritage Team (STScI/AURA/NASA) Nebulae are all but impossible to spot in the night sky, but you'd ...

Through a telescope, they make the most jaw-dropping beauty shots. But what is a nebula in the first place? Have you ever wondered where nebulae come from, or what they're made of? If so ...