In May 2014, a 56-year-old man arrived in the emergency department at the veterans' hospital in Little Rock, Arkansas. He reported intense but vague symptoms: weakness, fatigue, and body aches. The emergency-room team drew some of his blood and found it bursting with a waste chemical called creatinine—more than four times the normal level. That meant he was experiencing severe kidney failure. Doctors started urgent dialysis, cycling the blood out of the man's body, through a machine that cleaned it in lieu of functional kidneys.

The University of Arkansas physicians who managed the case were perplexed, they report in the current issue of The New England Journal of Medicine. What causes an otherwise healthy person to develop such dramatic renal failure? Another clue initially confused the picture: Urine tests found oxalate crystals at more than twice the upper limit of normal. When they show up in those quantities, doctors are taught to ask if the person has been drinking antifreeze, because ethylene glycol can cause oxalate crystals to accumulate. This man denied drinking antifreeze—as people who drink antifreeze tend to do. But the doctors didn't need to pursue that line because, they report, "on further questioning, the patient admitted to drinking 16 eight-ounce glasses of iced tea daily." And then it made sense.

Raj Chetty got his biggest break before his life began. His mother, Anbu, grew up in Tamil Nadu, a tropical state at the southern tip of the Indian subcontinent. Anbu showed the greatest academic potential of her five siblings, but her future was constrained by custom. Although Anbu’s father encouraged her scholarly inclinations, there were no colleges in the area, and sending his daughter away for an education would have been unseemly.

But as Anbu approached the end of high school, a minor miracle redirected her life. A local tycoon, himself the father of a bright daughter, decided to open a women’s college, housed in his elegant residence. Anbu was admitted to the inaugural class of 30 young women, learning English in the spacious courtyard under a thatched roof and traveling in the early mornings by bus to a nearby college to run chemistry experiments or dissect frogs’ hearts before the men arrived.

1. The Disappearance

At 12:42 a.m. on the quiet, moonlit night of March 8, 2014, a Boeing 777-200ER operated by Malaysia Airlines took off from Kuala Lumpur and turned toward Beijing, climbing to its assigned cruising altitude of 35,000 feet. The designator for Malaysia Airlines is MH. The flight number was 370. Fariq Hamid, the first officer, was flying the airplane. He was 27 years old. This was a training flight for him, the last one; he would soon be fully certified. His trainer was the pilot in command, a man named Zaharie Ahmad Shah, who at 53 was one of the most senior captains at Malaysia Airlines. In Malaysian style, he was known by his first name, Zaharie. He was married and had three adult children. He lived in a gated development. He owned two houses. In his first house he had installed an elaborate Microsoft flight simulator.

On July 20, 1969, the astronaut Neil Armstrong became the first human being to walk on another world, famously marking the moment with the phrase: “That’s one small step for [a] man, one giant leap for mankind.” After months of preparation, preceded by years of development and testing, the crew of NASA’s Apollo 11 lifted off from Florida on July 16, arriving at the moon on July 19. While Command Module Pilot Michael Collins remained in lunar orbit, Armstrong and Lunar Module Pilot Edwin “Buzz” Aldrin descended to the surface and spent two and a half hours on the moon, setting up experiments, taking photos, and gathering samples. After their safe return home, the crew were celebrated by politicians and the public as they embarked on a 45-day goodwill tour, visiting a total of 27 cities in 24 countries.  Below, 50 photos of the historic Apollo 11 mission, on the 50th anniversary of that giant leap. Editor’s Note: This article is part of a series reflecting on Apollo 11, 50 years later.

About 4.5 billion years ago, according to the most popular theory of the moon’s formation, a mysterious rocky world the size of Mars slammed into Earth. From the fiery impact, shards swirled and fused into a new, airless world, itself bombarded with rocky objects. In the absence of the smoothing touch of weather and tectonic activity, every dent remained. And then, one day, among craters both microscopic and miles-wide, two guys came along and stepped on the surface, carving new hollows with their boots.

Buzz Aldrin, seeing the moon from the surface for the first time, described it as “magnificent desolation.”

It was not so desolate when they departed. The Apollo 11 astronauts discarded gadgets, tools, and the clothesline contraption that moved boxes of lunar samples, one by one, from the surface into the module. They left behind commemorative objects—that resplendent American flag, mission patches and medals honoring fallen astronauts and cosmonauts, a coin-size silicon disk bearing goodwill messages from the world leaders of planet Earth. And they dumped things that weren’t really advertised to the public, for understandable reasons, such as defecation-collection devices. (Some scientists, curious to examine how gut microbes fare in low gravity, even proposed going back for these.)

There’s a scene midway through When Harry Met Sally that finds the rom-com’s title couple, one evening, in bed—separate beds, each in their respective apartments, shown on a split screen. The will-they-or-won’t-they best friends, currently in the won’t-they stage of things, are talking on the phone as they watch Casablanca on TV. “Ingrid Bergman,” Harry muses. “Now she’s low-maintenance.”

“Low-maintenance?” Sally asks.

“There are two kinds of women,” Harry explains, anticipating her question: “high-maintenance and low-maintenance.”

“And Ingrid Bergman is low-maintenance?”

“An L-M, definitely,” Harry replies.

“Which one am I?”

Harry has anticipated this question, too—of course Sally would wonder. “You’re the worst kind,” he says, coolly. “You’re high-maintenance, but you think you’re low-maintenance.”

The conservative intelligentsia flocked to the Ritz-Carlton in Washington, D.C., this week for the National Conservatism Conference, an opportunity for people who may never have punched a time clock to declare their eternal enmity toward elites and to attempt to offer contemporary conservative nationalism the intellectual framework that has so far proved elusive.

Yoram Hazony, the Israeli scholar who organized the conference, explicitly rejected white nationalism, barring several well-known adherents from attending, my colleague Emma Green reported. But despite Hazony’s efforts, the insistence that “nationalism” is, at its core, about defending borders, eschewing military interventions, and promoting a shared American identity did not prevent attendees from explicitly declaring that American laws should favor white immigrants.

For seven and a half minutes on the night of July 20, 1969, Pink Floyd took thousands of BBC viewers to the moon. Of course, two men were already there: Neil Armstrong and Buzz Aldrin, the Apollo 11 astronauts who became the first human beings to set foot on the lunar surface. However, the members of Pink Floyd—David Gilmour, Roger Waters, Nick Mason, and Richard Wright—weren’t using science, calculus, and technology to transport people through space on that fateful evening. They were using music, specifically an improvised and largely forgotten song called “Moonhead.”

The piece isn’t ranked with Pink Floyd classics such as “Wish You Were Here” or “Another Brick in the Wall, Part 2.” Over the decades, “Moonhead” has remained one of the most overlooked entries in the band’s canon, despite its historic status. Pink Floyd was commissioned by the BBC to perform instrumental music live on the air as the Apollo 11 crew’s video and audio signals came streaming in across the emptiness of space, beating the Soviets at the race that had been spurred on by John F. Kennedy’s rousing moonshot speech in 1962.

GREENVILLE, N.C.—Before the rally began, I wanted to know why they’d come.

In the heavy, humid hours, I walked up and down the line winding through a parking lot at East Carolina University to interview some two dozen people who wanted to see the president. Many didn’t make it inside. About 90 minutes before Donald Trump took the stage, police announced that the 8,000-person basketball arena was full and those still waiting would have to watch on an oversize TV monitor set up outside. Rather than head home, they stuck around for a tailgate party of sorts.

Some cracked open beers and lit cigars, sitting on folding chairs in front of the TV. People walked by in shirts that read In Trump We Trust and Fuck Off, We’re Full. Earlier, in the 100-degree heat, a four-member family band called the Terry Train entertained the crowd with a song mocking CNN. Lying Wolf Blitzer and Lying John King. Don Lemon lies about everything … Erin Burnett, can you hear us yet? We’ll give you a story you can never forget. It built to this refrain: CNN sucks!

Apollo 11 was all about the destination, but there was more to the mission than the landing itself. Neil Armstrong, Buzz Aldrin, and Michael Collins took an eight-day-long journey punctuated by a series of complicated procedures to reach the moon and make it back in one piece. And in between these tense maneuvers were easy conversations and playful jokes. After all, the crew was stuck with one another for hours. It wasn’t going to be business all the time.

The Apollo 11 flight transcripts capture these buoyant moments in a sea of jargon about spacecraft systems. These exchanges feel familiar in an environment that is anything but. The astronauts drink hot coffee and eat sausage for breakfast; they listen to music; they make fun of one another and of Mission Control. Reading through the transcripts, it’s easy to forget these three men are actually hurtling through space at thousands of miles per hour, with no guarantee they’d get where they were going, and no guarantee they’d come back. Sometimes, they sound just like a group of guys on a road trip. “If we’re late in answering you,” Collins told Mission Control several hours after they launched from Cape Canaveral, “it’s because we’re munching sandwiches.”