Many good things come in threes: the Three Musketeers, the Three Tenors, movie and book trilogies, and more. There seems to be something symmetrical, beautiful, and satisfying when using the power of ...

A massive cloud of dust and glowing gases speckled with newborn stars in the shape of a seagull shines in a stunning image captured by a telescope in Chile. A new photo from the European Southern ...

The Hubble Space Telescope may be experiencing problems this week, but it continues to offer a massive trove of data for astronomers to explore — including this week’s image of the beautiful and ...

Emission nebulae are the subject of many of the most spectacular astrophotographs published in the last decade. Although there are many subcategories of nebulae, they all consist of interstellar gas ...

Emission Nebulae Emission nebulae are so named because they emit their own light. This type of nebula forms when the intense radiation of stars within or near the nebula energizes the gas. A star’s ...

This image taken with the NASA/ESA Hubble Space Telescope showcases the emission nebula NGC 2313. Emission nebulae are bright, diffuse clouds of ionized gas that emit their own light. ESA/Hubble, R.

A rosy red nebula takes center stage in a new photo from the European Southern Observatory (ESO). The expansive cloud of dust and gas, known as IC1284, is an emission nebula, a bright, diffuse cloud ...

Pismis-Moreno 1 is a sparsely studied open star cluster located in the Cepheus constellation at a high declination. The cluster, spanning 9 arcminutes, is physically associated with the emission ...

Many scientific terms are very specific, but the term nebula is, well, nebulous. In a very generic sense, it simply means a fuzzy thing. But there are a wide variety of astronomical objects that can ...