They identified a giant grand-design spiral galaxy, named Zhúlóng ... opens new perspectives on galaxy formation in the young Universe. Spectral analyses reveal that the nucleus of Zhúlóng ...

Galaxies are the building blocks of the universe. Clusters of galaxies ... there can be vast interstellar clouds of gas and dust. Spiral galaxies have a thin, pancake-shaped disk, with a spherical ...

The expansion of the Universe is not constant ... Our Milky Way is a spiral galaxy rotating around a central point. Our Sun is on one of the spiral arms as shown in the diagram: The Sun's orbital ...

For over a century, astronomers have marveled at the beauty and complexity of spiral galaxies ... from the emptiest regions of the universe to the earliest moments of the Big Bang to the hunt ...

"In this paper, we present the discovery, in the Abell 2744 cluster field, of a two-armed, grand-design spiral galaxy, with a redshift of z ∼4, when the universe was only ∼1.5 billion years old.