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" ... A pulsar lies at the heart of the Crab Nebula. ... "
" ... Carroll covers everything from the earliest detected pulsar planets, which normally get short shrift in such tomes, to the very latest in results from NASA’s Kepler Space Telescope and NASA’s TESS (Transiting Exoplanet Survey Satellite). With depictions of everything from sunsets in a multiple star system to imagined bioluminescent life on an exo-world, the book also gives a nod towards present and future space-based exoplanet missions. ... "
" ... However, what’s even more interesting is a binary pulsar system, where a pulsar is in a binary orbit with another compact companion. That companion can be a white dwarf, a neutron star, another pulsar, or possibly even a black hole. The arrival time of these pulses is so precise that measuring pulse variations tells us how the system is changing over time, enabling us to measure subtle effects very precisely. ... "
" ... Ten years later, a pair of scientists used Arecibo to find the first-ever binary pulsar. A pulsar is a pulsating neutron star, and a binary system is made up of two pulsars that orbit around a common center of mass. ... "