American astronaut Malcolm Scott Carpenter, the fourth American astronaut in space and the second to orbit Earth, died Thursday at the age of 88. Image: AP

Scott Carpenter, the fourth American astronaut to fly in space and the second to orbit Earth, died on Thursday, a NASA official tells NPR.

Carpenter, an original Mercury 7 astronaut, was 88.

NPR's Russell Lewis filed this report for our Newscast unit:

"Scott Carpenter's 1962 flight was just five hours, and his mission was to determine how well humans could function in weightlessness. His capsule circled the Earth three times before returning for a parachute landing.

"Carpenter was about 250 miles off-course because of a technical malfunction. He would never fly in space again. Remembering his mission, in 2012, he realized that now humans are in survival mode.

Carpenter, at the 109th Explorers Club Annual Dinner in March 2013, in New York City. Image: Landov

"We've got to take care of the resources we have on this planet, because there's no resupply possible," he said at the time.

"Carpenter was also a Navy veteran who served in the Korean War."

The original seven Mercury astronauts during a training mission at NASA Langley Research Center, in March 1961. From left: Scott Carpenter, Gordon Cooper, John Glenn, Virgil "Gus" Grissom, Walter Schirra, Alan Shepard, and Donald "Deke" Slayton. Image: AP

Carpenter leaves a hangar at Cape Canaveral on May 24, 1962, en route to the launching pad. Image: AP

The New York Times has a bit more about that 1962 mission marred by technical glitches:

The mission of Carpenter's 1962 flight was to determine how well humans could function in weightlessness. Image: Keystone/Getty Images

"His death leaves John H. Glenn Jr., who flew the first orbital mission on Feb. 20, 1962, and later became a United States senator from Ohio, as the last survivor of the Mercury 7.

"When Lieutenant Commander Carpenter splashed down off Puerto Rico in his Aurora 7 capsule on May 24, 1962, after a harrowing mission, he had fulfilled a dream.

In 2011, Carpenter spoke at the dedication ceremony for the Mercury Project and Messenger Mission postage stamp, at the Kennedy Space Center. Image: Red Huber/Orlando Sentinel/MCT/Landov

" 'I volunteered for a number of reasons,' he wrote in We Seven, a book of reflections by the original astronauts published in 1962. 'One of these, quite frankly, was that I thought this was a chance for immortality. Pioneering in space was something I would willingly give my life for.' "

Update at 5:13 p.m. ET. The Mission:

Carpenter, with his wife and three of their children, greets President John F. Kennedy at the White House in June 1962. Image: Henry Griffin/AP

For his obituary on All Things Considered, Russell focuses on Carpenter's one and only time in space.

In the '60s, Russell explains, space was still a mystery; humans had basic questions like: Could people function in space? Would their blood boil? Was it possible to eat?

American astronaut Malcolm Scott Carpenter, the fourth American astronaut in space and the second to orbit Earth, died Thursday at the age of 88. Image: AP

Carpenter tried to answer many of these questions, and a packed schedule contributed to a ragged mission.

Mercury 7 astronauts Gordon Cooper (from left), Wally Schirra and Carpenter at a press conference at Kennedy Space Center in 1998. The three were in Florida to watch the launch of the Shuttle Discovery, which carried 77-year-old Glenn into orbit Image: Tony Ranze/AFP/Getty Images

Here's a bit of Russell's script:

"Carpenter orbited the Earth three times. He barely had a moment to himself. Check blood pressure, maneuver the capsule, take celestial measurements. Carpenter got behind in the flight plan, and NASA's controllers were worried. Here he is talking to fellow astronaut Alan Shepard about his re-entry plans:

" 'How are you doing on re-entry attitude over?'

American astronaut Scott Carpenter, in May 1962. Image: Keystone/Getty Images

" 'Yeah, [I'm] stowing a few things first. I don't know yet.'

"During the final orbit, the engines didn't fire at the right time. It was later determined to be a technical malfunction. Carpenter's capsule splashed down 250 miles off-course. At first NASA applauded the mission but later was bothered by the blemish. This is Chris Kraft, NASA's flight director at the time, in a 2001 NPR interview:

" 'I just don't think he had an appreciation for the position he had put himself in or frankly put the space program in.'

NASA historians say that criticism is unfair. Francis French has written several books about NASA's early years.

" 'I think that's where some of the misconceptions about his flight come in, because he did try to do everything and he managed to do everything,' French said. 'But it did mean the mission didn't go 100 percent according to the checklist.' "

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