Astronomers have discovered that the iconic Pleiades cluster, long admired as the “Seven Sisters,” is only a small part of a ...

98.5% of the Sun is made up of two light chemical elements, hydrogen and helium, while the remaining 1.5% consists of other heavier elements such as carbon, oxygen, and iron. The abundance of these ...

Helium, the second most abundant element in the universe after hydrogen, plays a central role in determining the physical and chemical characteristics of stars.

A vast, but previously unknown structure has been discovered around our own Milky Way galaxy by an international team of astronomers. The announcement is being made on behalf of Drs. Annette Ferguson, ...

The galaxy NGC 1291 is about 12 billion years old—and that’s old. So what’s it doing with a ring of newborn stars around it? In this newly released image from NASA's Spitzer Space Telescope, trapped ...

It’s the first time we have detected one,” says Cyril Tasse of the Paris Observatory, referring to a coronal mass ejection, ...

The study of stellar astrophysics and galactic structure investigates the life cycles of stars and the organisation of galaxies. At its core, the field explores how stellar evolution, from the ...

A NASA spacecraft designed to seek out alien worlds has also revealed new details about the structure and evolution of stars, and should help astronomers better understand the future of our own sun, ...

Readings done by a Canadian-Austrian team present a puzzle for astronomers. Expected surface phenomena, which provide information about stellar structures, could not be evidenced from readings ...

98.5% of the Sun is made up of two light chemical elements, hydrogen and helium, while the remaining 1.5% consists of other heavier elements such as carbon, oxygen, and iron. The abundance of these ...