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Saturday Headlines: Someday we will sleep in lunar caves.

In dealing with drug laws and lobbyists, Congress is way out of its league, and the result is legislation that's stripping law enforcement of its power to protect Americans from prescription drug abuse.

Puerto Rico faced a pollution crisis even before Maria struck. Now with an urgent need to rebuild, whether the island chooses the fastest solutions or the best ones will dictate its environmental future.

Starting in 2018, California will become the first state to offer gender-neutral birth certificates.

Japan's space agency discovers a cave on the moon that could serve as a base for astronauts.

The neutron star merger that had everyone gawking and other celestial delights in the space photos of the week.

This video of Pyongyang from the air was shot by Singaporean photographer Aram Pan with clearance from North Korea’s government.

“Meanwhile, Donald Trump was all over it, bringing up Clinton’s health with regularity. I wondered why CNN and other outlets weren’t reporting these stories.” After becoming a registered gun owner, an American began seeing fake news on Facebook.

Trump family and advisors retweeted disinformation from an allegedly Russian-run fake GOP Twitter account.

Because "success" equals attracting attention, Richard Spencer won in Gainesville.

"The bankers have taken the place of monarchs." A Russian performance artist is arrested for torching a Paris bank.

A new issue of Playboy features its first transgender model. Keeping with tradition, some fans are appalled.

“He put his shirt on and again mentioned how stubborn I was. I agreed with an easy laugh, trying to get myself out of the situation safely. I was after all on his premises, and the members of his household were all (strategically, it seems to me now) in a soundproof room.” Lupita Nyong’o on speaking out in post-Harvey Weinstein Hollywood—“let us never shut up about this kind of thing.”

A day in the life of Kaitlyn Christian, Emma Stone's tennis double, who put her pro career on hold for Hollywood.

Doctors don't actually know what causes a side stitch, or even how to reliably make them go away.

Like origami, but with cutting, here are lovely kirigami models of Frank Lloyd Wright buildings.

“Thoreau suffered from insomnia, and his retreat, in 1845, to a simple cabin at Walden Pond was, in part, driven by a desperate need for rest. Thoreau attributed his nightly struggles to the fact that railroads and other industrial changes had disturbed the natural environment around Concord.” On humans’ never-ending quest for a good night’s sleep.

Haunting portraits of ancient old-growth forests in Northern California.