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The strange blobs in the Earth's mantle are remnants of ancient dwarf planets that impacted young Earth.

   The strange blobs in the Earth's mantle are remnants of ancient dwarf planets that impacted young Earth. 

  

"The large low velocity provinces (LLVPs) in the deep Earth mantle may be relics of Theian mantle materials. Credit:  Hongping Deng and Hangzhou Sphere Studio" (ScitechDaily.com/Earth’s Hidden Guests: Strange Blobs in Deep Mantle Are the Remains of an Ancient Planet)


The ancient planet called Thea impacted Earth causing the birth of the Moon. The thing that makes Theia different than asteroids like Ceres is that it is a rocky planet. There is a possibility that Theia was a planet or planet's core that some cosmic impact sent to Earth's orbit. And then the collision formed the Moon. 

That ancient planet formed blobs in Earth's mantle. The mysterious gravitational hole in Earth's gravitational field can also have a possible connection with those blobs. The question is did the moon form the opposite side from that impact? 

Or did it form from the bubble that this impact arose on the same side of the dwarf planet impact? The impact was far more highly energetic than the impact that killed dinosaurs. The reason why Earth exists is that it is in liquid form. If Theia hits modern Earth, that turns Earth into an asteroid cloud. 


"Fomalhaut b as observed from 2004 to 2014. Previously thought to be an exoplanet, it is now known to be an expanding dust cloud." (Wikipedia, Formalhault b)


"Visualisation of Fomalhaut and Fomalhaut b (artist's impression)" (Wikipedia/Formalhaut b)

The cosmic impact or small black hole can be the fate of the exoplanet Formalhaut b. Dust cloud eliminates black hole because black hole would pull dust inside it. That means the fate of Formalhaut b is the cosmic impact with another planet. But the small black hole could rip the planet into dust. And the thing in the Formalhault b case is that there was no straight image of the collision. The problem is that there seem to be no  X- or gamma-rays near Formalhaut. And that makes this vanished exoplanet interesting. In some visions, the free gravitational waves that are lensed and form focus in space can rip even planets in the pieces. 

This kind of impact happens quite often in other solar systems. Astronomers believe that an exoplanet called Formalhaut b was the victim of that kind of impact. That exoplanet is directly confirmed. And then it vanished. Maybe some cosmic impact or a small black hole is the fate of that exoplanet. 

The Formalhaut b is an interesting case because Formalhaut is quite stable but a young star. The age of that star is about 4,4 million ( (4.4±0.4)×10^8) years. And the age of the Sun is 4,6*10^9 years. The Formalhault system is full of debris, meteorites, dust, and ice. And the collisions are quite usual in that kind of young solar system. 


https://scitechdaily.com/earths-hidden-guests-strange-blobs-in-deep-mantle-are-the-remains-of-an-ancient-planet/

https://en.wikipedia.org/wiki/Fomalhaut_b


https://en.wikipedia.org/wiki/Theia_(planet)


https://en.wikipedia.org/wiki/Sun


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