A century ago, Edwin Hubble revolutionized our understanding of the universe by proving that the Milky Way is just one of ...

This intermediate spiral galaxy is located about 50 million light-years from Earth in the constellation Virgo. Known as NGC 4536, the galaxy boasts sweeping spiral arms speckled with bright blue ...

For over a century, astronomers have marveled at the beauty and complexity of spiral galaxies. The largest "grand design" spirals can host a dozen or more individual arms. But recently ...

A third category—nebulae with spiral structure—particularly intrigued astronomers. The Andromeda nebula, M31, was a prominent example. It's visible to the naked eye from a dark site.

Astronomy is arguably the oldest science, and has featured strongly throughout the history of Nature — the first quasar, the first exoplanet, the nature of spiral nebulae, to name but a few of ...

Our Sun belongs to a spiral galaxy called the Milky Way ... also known as a nebula. Nebulae are mostly composed of hydrogen. As the mass falls together it gets hot. A star is formed when it ...