2019-06-17:  Two interesting items I learned about today

In January of this year (2019), it was announced that a rock sample from Apollo 14 collected in 1971 looks very much like it has a piece of rock from Earth within it! This would make it an Earth meteorite which struck the Moon and became emplaced in some of the lunar rock.

This would have happened like a game of Solar System pinball, as it would take a large meteorite striking Earth to knock some terrestrial matter free and all the way to the Moon.

Radiometric dating puts them at about 4.1 billion years old, so very early in Earth’s 4.5-billion-year history but importantly not as old as the Theia-Earth impact event which formed the Moon itself, so there was a distinct subsequent event which led to this lunar oddity.   https://eos.org/articles/apollo-may-have-found-an-earth-meteorite-on-the-moon

AND

Worried about rising sea level due to global warming or all the rain we have been having?  Just remember that Mount Everest, the highest point on earth, used to be the seabed before the Indian subcontinent collided with Eurasia.

https://eos.org/articles/apollo-may-have-found-an-earth-meteorite-on-the-moon