Just a few hundred light years from Earth, a swollen red giant is quietly forcing astronomers to rethink how stars seed the galaxy with the raw materials for planets and life. New observations of the ...

You are watching a long-held idea in stellar physics face serious scrutiny. Researchers at Chalmers University of Technology, working with colleagues at the University of Gothenburg, have taken a ...

Why Oxygen-Rich Stars Are a Problem That idea has always been harder to defend for oxygen-rich red giants. In these stars, dust is thought to form first as aluminium oxide, then grow into silicate ...

At this late stage of stellar life, stars similar to the Sun expand into what astronomers call asymptotic giant branch stars. These bloated red giants have dense cores, active nuclear shells, and vast ...