Artist’s illustration of a pulsar. Credit: Carl Knox, OzGrav-Swinburne University
Occasionally pulsars—rapidly-spinning remnants of stars that flash like a lighthouse—show extreme variations in brightness. Astrophysicists...
An artist’s impression of the ESA-JAXA BepiColombo spacecraft. Credit: ESA/ATG medialab
BepiColombo is a joint mission between the European Space Agency (ESA) and the Japan...