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 ...

Together, the observations and simulations show that dust grains alone cannot explain how winds escape from oxygen-rich red giant stars like R Doradus. At this late stage of stellar life, stars ...

Scientists observing the red giant star R Doradus have found that starlight isn’t strong enough to drive its stellar winds, overturning a long-standing theory. The dust grains around the star are ...

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 ...