Astronomy news this week: Hubble images the most distant star, radio telescopes combine forces to probe black hole jet, and neutron star hotspots explained.
Astronomers have found some pulsars that appear unusually massive, calling into question our understanding of neutron-star interiors.
New observations have helped astronomers identify the source of a 2,000-year-old supernova explosion. But this blast, and the neutron star that created it, seem to have a curious history that defies explanation.
Astronomers have discovered a newborn neutron star in a rare pairing with an old red giant companion.
Scientists have been looking for decades to confirm a weird quantum effect first predicted in 1936. Have they finally found hard evidence for it?
The gravitational wave observatory has detected a second event, heralding a new era in astrophysics. The day after Christmas last year, the cosmos quietly gifted scientists with gravitational waves — ripples in the fabric of spacetime – produced in a collision between two stellar-mass black holes. It’s the second event detected by physicists working with…
Astronomers can measure a neutron star's diameter by effects of gas skimming around its surface at 40% of light speed.
Astronomers have observed a neutron star flaring to 10,000 times its original brightness.
Got any plans in 46 million years? If not, you should keep an eye out for PSR J1946+2052 around that time — this upcoming merger of two neutron stars promises to be an exciting show!
Stars leave interesting messes after they die: diamond-studded puffballs, neutron stars, and black holes. We explore an example of each in June's night skies.
These stellar corpses have many faces, from pulsars to magnetars. New models provide evidence for unifying these disparate objects under one theory.
X-ray echoes from binary star system Circinus X-1 are helping astronomers measure its distance from Earth.