Pulsar in a stellar triple system makes unique gravitational lab

Astronomers using the National Science Foundation's Green Bank Telescope (GBT) have discovered a unique stellar system of two white dwarf stars and a superdense neutron star, all packed within a space smaller than Earth's orbit around the Sun.

Astronomers Uncover a 'Transformer' Pulsar

An international team of scientists using a fleet of orbiting X-ray telescopes, including NASA's Swift and Chandra X-ray Observatory, has discovered a millisecond pulsar with a dual identity. In a feat that has never before been observed, the star readily shifts back and forth between two mutually exclusive styles of pulsed emission -- one in X-rays, the other in radio.

Einstein's theory of relativity highlighted by pulsar and white dwarf

An international research team led by astronomers from the Max Planck Institute for Radio Astronomy recently used a collection of large radio and optical telescopes to investigate a pulsar and its white dwarf companion.

Pulsar shows puzzling behavior

Astronomers are baffled by the discovery of a pulsar - a tiny spinning stars, heavier than the sun and smaller than a city - that emits different types of radiation at different times.

Volunteers discover rare neutron star

Three 'citizen scientists' putting their home computers to work when they would otherwise have been idle have discovered a rare rotating pulsar.