#stellar evolution

All articles tagged with "stellar evolution"

Researchers say the Milky Way’s star-forming disc ends roughly 40,000 light-years from the galactic center.
The conclusion comes from age analysis of more than 100,000 giant stars using several survey datasets.
Older stars beyond that boundary are thought to be migrants pushed outward by spiral arms or the central bar.

DT Editorial Team·Apr 28, 2026·via universetoday.com

Astronomers discovered an extremely rare, iron-deficient second-generation star that formed from a single Population III supernova
The star's chemical fingerprint provides direct evidence of how the universe's first stars seeded heavy elements
Such stars were detected using high-resolution spectroscopy across databases of millions of stellar spectra
The findings help constrain the mass and explosion energetics of the universe's first stellar generation

DT Editorial Team·Mar 19, 2026·4 min read·via space.com

Astronomers observed a dying star producing a rare heart-shaped outburst as it sheds its outer layers
The heart geometry is likely shaped by a companion star or magnetic field creating bipolar outflows
The structure is cosmically short-lived, lasting only thousands of years before dispersing into space

DT Editorial Team·Feb 14, 2026·2 min read·via space.com