We share reports on one specific object: Swift J1756.9-2508, an accreting, millisecond X-ray pulsar.  It was discovered in June 2007- suddenly bright, as transient sources can be; the 182 Hz X-ray pulsation was quickly discovered, but a month later, the object faded and disappeared from the sky —  and has been dormant since July 2007. … Continue reading OTN Ep #003: Why Swift J1756.9-2508? →