Topic: Vampires and collisions rejuvenate stars

[Orstio]

Click here to read the article ...

Using the NASA/ESA Hubble Space Telescope, astronomers have uncovered two distinct kinds of rejuvenated stars in the globular cluster Messier 30. A new study shows that both stellar collisions and a process sometimes called vampirism are behind this cosmic face lift. The scientists also uncover evidence that both sorts of blue stragglers were produced during a critical dynamical event (known as core collapse) that occurred in Messier 30 a few billion years ago.
This illustration demonstrates the two ways that blue stragglers — or . . .