nebulae articles

Who first discovered the nebulae?

The initial observation of the faint, hazy patches in the night sky that we now call nebulae is not attributable to a si...

How does a star go from a red giant to a planetary nebula?

The journey of a Sun-like star from its expansive, aging phase as a red giant to the ephemeral beauty of a planetary neb...

Who first discovered the nebula?

The moment a fuzzy patch of light in the night sky was recognized as something *other* than a comet, a star cluster, or ...

What causes the bright colors in an emission nebula?

The vibrant, cloud-like structures of an emission nebula present some of the most breathtaking sights in the night sky, ...

How does a nebula form a main sequence star?

The story of a star is one of an epic, slow-motion transformation, beginning in the cold, dark reaches of space within m...