The AGB star then fades from view, leaving the altered composition of the companion as the only clue to its nucleosynthesis. By studying the companion’s unusual abundances, together with modelling how ...

A “dark mirror” universe sounds like a Star Trek plot point filled with ... of pure [dark neutrons] can form during dark Big ...

Astronomers have observed clear patterns in the relative amounts of different elements from star to star ... Study of Ca40 to ...