How do the exoplanets discovered through pulsar timing differ from nearly all the other exoplanets discovered to date?
A) They are more massive.
B) They are older.
C) They have larger diameters.
D) They are closer to Earth.

Question

Quizplus · Accepted Answer

Exoplanets discovered through pulsar timing are often older because pulsars themselves are old neutron stars, remnants of supernovae, indicating that their planetary systems are also ancient compared to those found around main-sequence stars through other methods.

How Do the Exoplanets Discovered Through Pulsar Timing Differ from Nearly