The mass spectrum of binary black-hole mergers has been expected to show a ‘mass gap’ above 45 solar masses, consistent with the physics of pair-instability supernovae. An extensive catalogue of ...

Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. An artist’s impression of ...

Thermodynamics is perhaps the most far-reaching subdiscipline of all the sciences, with applications in astrophysics, biology, chemistry, engineering and fundamental physics. Einstein was convinced ...