Assertion: pulsar's discovery | /r/HasProperty | unexpected
Facets:
value: completely
type: DEGREE
Source sentences:
text: The discovery of pulsar planets was unexpected; pulsars or neutron stars have previously gone supernova, and it was thought that any planets orbiting such stars would have been destroyed in the explosion.
text: Co-author Jason Hessels, ASTRON and University of Amsterdam, added: "This discovery was completely unexpected.