Earth instruction manual sent to the Moon

What a neat idea.  Having a lunar lifeboat repository in case the planet gets smashed or nukes itself into near oblivion has always appealed.  Now, we have the start of one:

A 30-million page library is heading to the moon to help preserve human civilization.

The massive archive is aboard Israel's Beresheet spacecraft. 

From the article itself:

Included in the Lunar Library’s more than 200 gigabytes of data are the entire English-language version of Wikipedia; tens of thousands of fiction and nonfiction books; a collection of textbooks; and a guide to 5,000 languages along with 1.5 billion sample translations between them.

All of that information is etched onto 25 stacked nickel disks, each just 40 microns (about 1/600th of an inch) thick.

Since people of the far future will presumably not have a DVD player handy, and might not speak any language now in use, the top of the Lunar Library’s disc is engraved with tiny images of books and other documents explaining human linguistics, along with instructions about how to read the library beneath. The introductory layers can easily be viewed when magnified 100 times under a simple microscope. Then it’s up to our crafty descendants to build the player so they can read the rest of the Library....

The Lunar Library is shielded by a protective layer and insulation, as well as the structure of the Beresheet lander itself. All of that should help safeguard it from micrometeorites that strike the moon on a regular basis. Even so, it may not have anything like the 6-billion-year lifetime that Spivack is targeting. “These objects will not survive for a billion years un-degraded, but they might be intact and unburied after 10 million years, maybe 50 million years,” Davies said.