There might be some astronomical observation of gravitational waves produced by neutron stars; although, I think, this time it is quite improbable, looking at the sheer fortuitousness of the so-called detection makes it untenable -- the VIRGO run was too short (just 25 days), LIGO never found any orbiting neutron stars' gravitational waves in the last 3 years, while there are too many neutron stars nearby to have slipped LIGO's notice. Let me tell you, LIGO actually never detected any black hole mergers in the past too. The least I can say is that the reported mergers were a result of the intense imagination of the LIGO folks, to say the least. And now to slip in the final secret -- Speed of gravity is infinite while LIGO shows it to be equal to the speed of light in its so-called observations. That is why all the gravitational wave observations by LIGO are false.

I fully agree with this comment: "...all the gravitational wave observations by LIGO are false."