1965: An astronaut in space holds a conversation with an aquanaut underwater, marking another milestone in human communication.

Astronaut Gordon Cooper, orbiting the Earth with Pete Conrad in Gemini 5, hooked up by radiotelephone with an old pal, astronaut-turned-aquanaut Scott Carpenter, who was living and working 205 feet beneath the surface of the Pacific Ocean near La Jolla, California, aboard Sealab II.

The two men had known each other since 1959, when they were among the seven pilots chosen by NASA to be America's first Project Mercury astronauts. Carpenter, a former Navy pilot, had already been in space, the solo astronaut on a mistake-plagued, three-orbit flight aboard Aurora 7 that resulted in his being effectively grounded.

He was on leave from the space agency when he joined the Navy's Sealab II project as training officer. Carpenter eventually resigned from NASA in 1967. He retired from the Navy in 1969.

Cooper and Conrad, meanwhile, were nearing the end of an eight-day orbital mission to test human endurance in space. Eight days was recognized as the time needed to travel to the moon and back. (Five days was the longest Soviet space flight before then, and the American record was four days. By years' end, American astronauts would complete a 14-day mission in space.)

The radio hookup was partly a gimmick, to take advantage of Carpenter's astronaut status to publicize the Sealab II project. But it was also a method of testing the effectiveness of an underwater electronics lab installed aboard the submersible.

Gemini 5 was not the only long-distance call made from Sealab II. The Navy aquanauts also spoke with President Johnson at the White House and with Jacques Cousteau's Conshelf 3 team, French colleagues conducting a similar underwater-habitat test off Cap Ferrat in the Mediterranean Sea.

Following their chat with Carpenter, Cooper and Conrad readied Gemini 5 for its return to Earth and splashed down in the very same Pacific Ocean later that day.

Thirty years later, in 1995, Carpenter recreated his seabed-to-space call, chatting with astronauts aboard the space shuttle Endeavor while staying at Jules' Undersea Lodge off Key Largo, Florida.

Source: Various

BLACK ROCK CITY, Nevada -- Wild rides, fireworks and letting it all hang out. That's the updated American dream at Burning Man 2008.

The annual desert gathering always celebrates that most-American ideal: freedom. Freedom to ride a giant red, white and blue tricycle across the playa; freedom to blow your mind however you want; freedom to traipse around wearing nothing but body paint.

That kind of ingrained whimsy, rather than politics, seems to be the point of this year's American Dream art theme at Burning Man. "What has America achieved that you admire?" is the event's official statement. "What has it done or failed to do that fills you with dismay? What is laudable? What is ludicrous?"

Groovy, man. Let's get it on.

Left: Red, white and blue abounds at the festival this year.

Red, white and blue abounds at the festival this year.

A stagecoach rolls up the esplanade on Tuesday evening.

Duane Flatmo from Eureka, California, steers his fire-breathing dragon around the esplanade Tuesday.

After hunkering down during Monday's sandstorm, burners break out their colorful costumes Tuesday -- including some that are just painted on. Robin Bowles, right, and her friend Cowboy Curtis chill on the playa on a "fuzzy bunny." The Man can be seen far off in the distance on the left.

A group of burners break out a desert "boat" to parade across the playa.

Black Rock City is humming Thursday.

Lamp Lighters walk down the esplanade Tuesday.

A panel van decked out with a lit-up Golden Gate Bridge makes its way across the sand Tuesday.

Tutu-wearing burner Diana Zanelli of Texas delights in the swirl of lights from inside artist Crispell Wagner's "modern version of the dream machine," an interactive piece of light art.

Home is where the art is at Burning Man.

The Man glows with neon as Helen Corley from San Ramon, California, twirls her flow lights below the festival's namesake icon in Black Rock City.

A giant duck lights up the night Tuesday as it rolls across the dusty desert floor.