Neutron stars are physicists' dreams come true: they bring together aspects of classical and quantum electrodynamics, coupled with strongly magnetized plasma physics in the curved rotating spacetime of a massive compact object. They are observed to be powerful emitters of non-thermal electromagnetic radiation, spanning about 20 orders of magnitude in ...
In 1929 Edwin Hubble discovered that our Universe is expanding. Eighty years later, the Space Telescope that bears his name is being used to study an even more surprising phenomenon: that the expansion is speeding up. The origin of this effect is not known, but is broadly attributed to a ...
