Crystals packed inside Apollo's lunar rocks suggest that the Moon could be a much older age than we thought.

Half a century after the last Apollo mission departed the Moon in December 1972, scientists have taken a fresh look at its precious parcels. A team sharpened the lunar rocks the astronauts had ferried to Earth, and then, by using a precise dating technique that measures the decay of unstable molecules called isotopes, researchers concluded that the Moon is at least 4.46 billion years old. Their new estimate, published in a new study in the journal Geochemical Perspectives Letters, suggests the Moon is older than previously estimated by 40 million years.

In the eight years since its release, Cities: Skylines has become both a landmark and an albatross. The gold standard in city building in the wake of SimCity’s shocking implosion, years of DLC have made it expensive and confusing for neophytes (all 59 add-ons are $377.97, although the essentials are frequently on sale) and a resource hog bloated by inefficiencies and mods.

Cities: Skylines II is as much a fresh start as a sequel. Many of the ideas introduced in C:S1’s paid expansions are gone. You can no longer build elaborate college campuses or sprawling nature reserves, novel transport options like blimps have been mothballed, policy decisions like smoking bans have been stripped down, and you won’t be throwing any music festivals.

But C:S2 isn’t just an excuse to re-release old DLC with better graphics. Cities: Skylines, for all its features, had begun to feel like a dozen different ideas stapled onto a rickety frame. Now, many of its concepts have been smartly streamlined. Roads, the bugaboo of many a newbie, are far more intuitive, and you no longer have to plaster pipes everywhere to keep water flowing. In other words, C:S2 wants you to focus on building rather than busy work.