Please identify the author or title (SF)

[Axeld]

I have been read all the books from this author but it was some time ago and I totally forgotten author name and titles.

This book is Science fiction.
One day a man find something on his field (meadow). He dig it and it appeared to be a yacht. This yacht had very complex devices inside - probably not made by humans.

The other book was about a Moon crashing an Earth as I good remember.

And the other book was about this strange and powerful force traveling across the universe and destroying everything that was build by intelligent live forms.

Thanks a lot for recognition.

[Bighuey]

Thats a tough one. The closest one I can think of for your last one was a book by Fredrick Brown, about a force that destroyed all electrical energy so nothing electrical worked and civilization went back to the way it was before electricity was known. I dont remember the name of the book but the author was Fredrick Brown.

[Axeld]

Thanks for the answer but it wasn't this.

I have finally found it on google!
It is Jack McDevitt - Ancient shores