Are planets still being formed?

The video discusses the discovery of Earth-like planets orbiting a pulsar neutron star, a remnant of a supernova explosion. These planets were detected using precise Doppler shift measurements. The formation of these planets post-explosion suggests that planet formation is a robust process, indicating a vast number of planets in the Milky Way galaxy.

How does the timing of the pulsar's beam help in measuring the properties of the neutron star?

What is the significance of detecting planets that formed after the star exploded?