Stellar winds hint at how planetary nebulae get their stunning shapes
In their dying throes, some stars leave behind beautiful planetary nebulae — disk, spiral or even butterfly-shaped clouds of dust and gas (SN: 5/17/18). How these fantastically shaped clouds arise…
Astronomers observe stellar winds from aging stars in unprecedented detail
Sept. 17 (UPI) — Astronomers have captured high resolution images of stellar winds emanating from a diversity of aging stars. The observations, detailed Thursday in the journal Science, suggest the…