Showing posts with label space. Show all posts
Showing posts with label space. Show all posts

Saturday, August 25, 2012

First man on the Moon, Neil Armstrong dies, he was 82.


WorldWide Tech & Science. Francisco De Jesùs.


First man on the Moon, Neil Armstrong dies, he was 82.




 Neil Armstrong was a quiet self-described nerdy engineer who became a global hero when as a steely-nerved pilot he made "one giant leap for mankind" with a small step on to the moon. The modest man who had people on Earth entranced and awed from almost a quarter million miles away has died. He was 82.
Armstrong died following complications resulting from cardiovascular procedures, a statement Saturday from his family said. It didn't say where he died.
Armstrong commanded the Apollo 11 spacecraft that landed on the moon July 20, 1969, capping the most daring of the 20th century's scientific expeditions. His first words after setting foot on the surface are etched in history books and the memories of those who heard them in a live broadcast.
"That's one small step for (a) man, one giant leap for mankind," Armstrong said.
In those first few moments on the moon, during the climax of heated space race with the then-Soviet Union, Armstrong stopped in what he called "a tender moment" and left a patch commemorateNASA astronauts and Soviet cosmonauts who had died in action.
"It was special and memorable but it was only instantaneous because there was work to do," Armstrong told an Australian television interviewer this year.
Armstrong and Buzz Aldrin spent nearly three hours walking on the lunar surface, collecting samples, conducting experiments and taking photographs.
"The sights were simply magnificent, beyond any visual experience that I had ever been exposed to," Armstrong once said.
The moonwalk marked America's victory in the Cold War space race that began Oct. 4, 1957, with the launch of the Soviet Union's Sputnik 1, a 184-pound satellite that sent shock waves around the world.
Although he had been a Navy fighter pilot, a test pilot for NASA's forerunner and an astronaut, Armstrong never allowed himself to be caught up in the celebrity and glamor of the space program.
"I am, and ever will be, a white socks, pocket protector, nerdy engineer," he said in February 2000 in one of his rare public appearances. "And I take a substantial amount of pride in the accomplishments of my profession."
A man who kept away from cameras, Armstrong went public in 2010 with his concerns aboutPresident Barack Obama's space policy that shifted attention away from a return to the moon and emphasized private companies developing spaceships. He testified before Congress and in an email to The Associated Press, Armstrong said he had "substantial reservations," and along with more than two dozen Apollo-era veterans, he signed a letter calling the plan a "misguided proposal that forcesNASA out of human space operations for the foreseeable future."
Armstrong's modesty and self-effacing manner never faded.
When he appeared in Dayton in 2003 to help celebrate the 100th anniversary of powered flight, he bounded onto a stage before 10,000 people packed into a baseball stadium. But he spoke for only a few seconds, did not mention the moon, and quickly ducked out of the spotlight.
He later joined former astronaut and Sen. John Glenn to lay wreaths on the graves of Wilbur and Orville Wright. Glenn introduced Armstrong and noted it was 34 years to the day that Armstrong had walked on the moon.
"Thank you, John. Thirty-four years?" Armstrong quipped, as if he hadn't given it a thought.
At another joint appearance, the two embraced and Glenn commented: "To this day, he's the one person on Earth, I'm truly, truly envious of."
Armstrong's moonwalk capped a series of accomplishments that included piloting the X-15 rocket plane and making the first space docking during the Gemini 8 mission, which included a successful emergency splashdown.
In the years afterward, Armstrong retreated to the quiet of the classroom and his southwest Ohio farm. Aldrin said in his book "Men from Earth" that Armstrong was one of the quietest, most private men he had ever met.
In the Australian interview, Armstrong acknowledged that "now and then I miss the excitement about being in the cockpit of an airplane and doing new things."
At the time of the flight's 40th anniversary, Armstrong again was low-key, telling a gathering that the space race was "the ultimate peaceful competition: USA versus U.S.S.R. It did allow both sides to take the high road with the objectives of science and learning and exploration."
Glenn, who went through jungle training in Panama with Armstrong as part of the astronaut program, described him as "exceptionally brilliant" with technical matters but "rather retiring, doesn't like to be thrust into the limelight much."
Derek Elliott, curator of the Smithsonian Institution's U.S. Air and Space Museum from 1982 to 1992, said the moonwalk probably marked the high point of space exploration.
The manned lunar landing was a boon to the prestige of the United States, which had been locked in aspace race with the former Soviet Union, and re-established U.S. pre-eminence in science and technology, Elliott said.
"The fact that we were able to see it and be a part of it means that we are in our own way witnesses to history," he said.
The 1969 landing met an audacious deadline that President Kennedy had set in May 1961, shortly after Alan Shepard became the first American in space with a 15-minute suborbital flight. (Soviet cosmonaut Yuri A. Gagarin had orbited the Earth and beaten the U.S. into space the previous month.)
"I believe this nation should commit itself to achieving the goal, before the decade is out, of landing a man on the moon and returning him safely to Earth," Kennedy had said. "No single space project in this period will be more impressive to mankind, or more important to the long-range exploration of space; and none will be so difficult or expensive to accomplish."
The end-of-decade goal was met with more than five months to spare. "Houston: Tranquility Base here," Armstrong radioed after the spacecraft settled onto the moon. "The Eagle has landed."
"Roger, Tranquility," the Houston staffer radioed back. "We copy you on the ground. You've got a bunch of guys about to turn blue. We're breathing again. Thanks a lot."
The third astronaut on the mission, Michael Collins, circled the moon in the mother ship Columbia 60 miles overhead while Armstrong and Aldrin went to the moon's surface.
In all, 12 American astronauts walked on the moon between 1969 and the last moon mission in 1972.
For Americans, reaching the moon provided uplift and respite from the Vietnam War, from strife in the Middle East, from the startling news just a few days earlier that a young woman had drowned in a car driven off a wooden bridge on Chappaquiddick Island by Sen. Edward Kennedy. The landing occurred as organizers were gearing up for Woodstock, the legendary three-day rock festival on a farm in the Catskills of New York.
Armstrong was born Aug. 5, 1930, on a farm near Wapakoneta in western Ohio. He took his first airplane ride at age 6 and developed a fascination with aviation that prompted him to build model airplanes and conduct experiments in a homemade wind tunnel.
As a boy, he worked at a pharmacy and took flying lessons. He was licensed to fly at 16, before he got his driver's license.
Armstrong enrolled in Purdue University to study aeronautical engineering but was called to duty with the U.S. Navy in 1949 and flew 78 combat missions in Korea.
After the war, Armstrong finished his degree from Purdue and later earned a master's degree in aerospace engineering from the University of Southern California. He became a test pilot with what evolved into the National Aeronautics and Space Administration, flying more than 200 kinds of aircraft from gliders to jets.
Armstrong was accepted into NASA's second astronaut class in 1962 — the first, including Glenn, was chosen in 1959 — and commanded the Gemini 8 mission in 1966. After the first space docking, he brought the capsule back in an emergency landing in the Pacific Ocean when a wildly firing thruster kicked it out of orbit.
Armstrong was backup commander for the historic Apollo 8 mission at Christmastime in 1968. In that flight, Commander Frank Borman, and Jim Lovell and Bill Anders circled the moon 10 times, and paving the way for the lunar landing seven months later.
Aldrin said he and Armstrong were not prone to free exchanges of sentiment.
"But there was that moment on the moon, a brief moment, in which we sort of looked at each other and slapped each other on the shoulder ... and said, 'We made it. Good show,' or something like that," Aldrin said.
An estimated 600 million people — a fifth of the world's population — watched and listened to the landing, the largest audience for any single event in history.
Parents huddled with their children in front of the family television, mesmerized by what they were witnessing. Farmers abandoned their nightly milking duties, and motorists pulled off the highway and checked into motels just to see the moonwalk.
Television-less campers in California ran to their cars to catch the word on the radio. Boy Scouts at a camp in Michigan watched on a generator-powered television supplied by a parent.
Afterward, people walked out of their homes and gazed at the moon, in awe of what they had just seen. Others peeked through telescopes in hopes of spotting the astronauts.
In Wapakoneta, media and souvenir frenzy was swirling around the home of Armstrong's parents.
"You couldn't see the house for the news media," recalled John Zwez, former manager of the Neil Armstrong Air and Space Museum. "People were pulling grass out of their front yard."
Armstrong, Aldrin and Collins were given ticker tape parades in New York, Chicago and Los Angeles and later made a 22-nation world tour. A homecoming in Wapakoneta drew 50,000 people to the city of 9,000.
In 1970, Armstrong was appointed deputy associate administrator for aeronautics at NASA but left the following year to teach aerospace engineering at the University of Cincinnati.
He remained there until 1979 and during that time bought a 310-acre farm near Lebanon, where he raised cattle and corn. He stayed out of public view, accepting few requests for interviews or speeches.
"He didn't give interviews, but he wasn't a strange person or hard to talk to," said Ron Huston, a colleague at the University of Cincinnati. "He just didn't like being a novelty."
Those who knew him said he enjoyed golfing with friends, was active in the local YMCA and frequently ate lunch at the same restaurant in Lebanon.
In 2000, when he agreed to announce the top 20 engineering achievements of the 20th century as voted by the National Academy of Engineering, Armstrong said there was one disappointment relating to his moonwalk.
"I can honestly say — and it's a big surprise to me — that I have never had a dream about being on the moon," he said.
From 1982 to 1992, Armstrong was chairman of Charlottesville, Va.-based Computing Technologies for Aviation Inc., a company that supplies computer information management systems for business aircraft.
He then became chairman of AIL Systems Inc., an electronic systems company in Deer Park, N.Y.
Armstrong married Carol Knight in 1999, and the couple lived in Indian Hill, a Cincinnati suburb. He had two adult sons from a previous marriage.
At the Griffith Observatory in Los Angeles on Saturday, visitors held a minute of silence in memory of Armstrong.
FILE - In this 1969 photo provided by NASA the crew of the Apollo 11 mission is seen. From left are Neil Armstrong, Mission Commander, Michael Collins,  Lt. Col. USAF, and Edwin Eugene Aldrin, also kn
In this 1969 photo provided by NASA the crew of the Apollo 11 mission is seen. From left are Neil Armstrong, Mission Commander, Michael Collins, Lt. Col. USAF, and Edwin Eugene Aldrin, also known as Buzz Aldrin, USAF Lunar Module pilot. The family of Neil Armstrong, the first man to walk on the moon, says he has died at age 82. A statement from the family says he died following complications resulting from cardiovascular procedures.  It doesn't say where he died. Armstrong commanded the Apollo 11 spacecraft that landed on the moon July 20, 1969. He radioed back to Earth the historic news of "one giant leap for mankind." Armstrong and fellow astronaut Edwin "Buzz" Aldrin spent nearly three hours walking on the moon, collecting samples, conducting experiments and taking photographs. In all, 12 Americans walked on the moon from 1969 to 1972. (AP Photo/NASA)

AP

Tuesday, August 7, 2012

NASA releases video and color photo,of Mars rover landing.

WorldWide Tech & Science. Francisco De Jesùs.

NASA releases video and color photo,of Mars rover landing.



NASA has released a low resolution video of the Curiosity Rover during the final few minutes of its decent to the Martian surface . Video silent.






Curiosity snaps the first color view of the north wall and rim of Gale Crater, where NASA's Mars rover landed Sunday night. The picture was taken by the rover's camera at the end of its stowed robotic arm and appears fuzzy because of dust on the camera's cover.


The color photo from the ancient crater where Curiosity landed showed a pebbly landscape and the rim of Gale Crater off in the distance. Curiosity snapped the photo on the first day on the surface after touching down on Mars Sunday night.
The rover took the shot with a camera at the end of its robotic arm, which remained stowed. The landscape looked fuzzy because the camera's removable cover was coated with dust that kicked up during the descent to the ground.
NASA celebrated the precision landing of a rover on Mars and marveled over the mission's flurry of photographs — grainy, black-and-white images of Martian gravel, a mountain at sunset and, most exciting of all, the spacecraft's plunge through the red planet's atmosphere.
Curiosity, a roving laboratory the size of a compact car, landed right on target late Sunday after an eight-month, 352-million-mile journey. It parked its six wheels about four miles from its ultimate science destination — Mount Sharp, rising from the floor of Gale Crater near the equator.
Extraordinary efforts were needed for the landing because the rover weighs one ton, and the thin Martian atmosphere offers little friction to slow down a spacecraft. Curiosity had to go from 13,000 mph to zero in seven minutes, unfurling a parachute, then firing rockets to brake. In a Hollywood-style finish, cables delicately lowered it to the ground at 2 mph.
At the end of what NASA called "seven minutes of terror," the vehicle settled into place almost perfectly flat in the crater it was aiming for.
"We have ended one phase of the mission much to our enjoyment," mission manager Mike Watkins said. "But another part has just begun."
The nuclear-powered Curiosity will dig into the Martian surface to analyze what's there and hunt for some of the molecular building blocks of life, including carbon.
It won't start moving for a couple of weeks, because all the systems on the $2.5 billion rover have to be checked out. Color photos and panoramas will start coming in the next few days.
But first NASA had to use tiny cameras designed to spot hazards in front of Curiosity's wheels. So early images of gravel and shadows abounded. The pictures were fuzzy, but scientists were delighted.
The photos show "a new Mars we have never seen before," Watkins said. "So every one of those pictures is the most beautiful picture I have ever seen."
In one of the photos from the close-to-the-ground hazard cameras, if you squinted and looked the right way, you could see "a silhouette of Mount Sharp in the setting sun," said an excited John Grotzinger, chief mission scientist from the California Institute of Technology.
A high-resolution camera on the orbiting 7-year-old Mars Reconnaissance Orbiter, flying 211 miles directly above the plummeting Curiosity, snapped a photo of the rover dangling from its parachute about a minute from touchdown. The parachute's design can be made out in the photo.
"It's just mind-boggling to me," said Miguel San Martin, chief engineer for the landing team.
Curiosity is the heaviest piece of machinery NASA has landed on Mars, and the success gave the space agency confidence that it can unload equipment that astronauts may need in a future manned trip to the red planet.
The landing technique was hatched in 1999 in the wake of devastating back-to-back Mars spacecraft losses. Back then, engineers had no clue how to land super-heavy spacecraft. They brainstormed different possibilities, consulting Apollo-era engineers and pilots of heavy-lift helicopters.
"I think its engineering at its finest. What engineers do is they make the impossible possible," said former NASA chief technologist Bobby Braun. "This thing is elegant. People say it looks crazy. Each system was designed for a very specific function."
Because of budget constraints, NASA canceled its joint U.S.-European missions to Mars, scheduled for 2016 and 2018.
"When's the next lander on Mars? The answer to that is nobody knows," Bolden said in a recent interview with The Associated Press.
But if Curiosity finds something interesting, he said, it could spur the public and Congress to provide more money for more Martian exploration. No matter what, he said, Curiosity's mission will help NASA as it tries to send astronauts to Mars by the mid-2030s.


Wednesday, July 11, 2012

Chile: Astronomers find evidence of dark galaxies.


WorldWide Tech & Science. Francisco De Jesùs.



Chile: Astronomers find evidence of dark galaxies.


Astronomers in Chile using a powerful telescope have observed what appears to be evidence of the existence of dark galaxies, the European Southern Observatory (ESO) announced Wednesday.

Dark galaxies are small, gas-rich galaxies from the early universe that are believed to be the building blocks of today's bright, star-filled galaxies, said the ESO, an intergovernmental organization supported by 15 countries.

"For the first time, dark galaxies -- an early phase of galaxy formation, predicted by theory but unobserved until now -- may have been spotted," the ESO said in a statement.

"Using ESO's Very Large Telescope, an international team thinks they have detected these elusive objects by observing them glowing as they are illuminated by a quasar," it said.


The ESO is the most advanced astronomical observatory in the world, and operates three sites in Chile.

The Very Large Telescope (VLT) array -- a cluster of four telescopes that can view objects four billion times fainter than objects visible to the naked eye -- is housed at the ESO's Paranal site in Chile's Atacama Desert.

"Our approach to the problem of detecting a dark galaxy was simply to shine a bright light on it," researcher Simon Lilly said in the release.

"With this study, we've made a crucial step towards revealing and understanding the obscure early stages of galaxy formation and how galaxies acquired their gas," added his colleague, Sebastiano Cantalupo.

The ESO is supported by Austria, Belgium, Brazil, Britain, the Czech Republic, Denmark, France, Finland, Germany, Italy, the Netherlands, Portugal, Spain, Sweden and Switzerland.



An artist's impression released by the European Southern Observatory (ESO) on June 11, 2012 shows the European Extremely Large Telescope (E-ELT) in Chile's Atacama Desert. Astronomers in Chile using a powerful telescope have observed what appears to be evidence of the existence of dark galaxies, the European Southern Observatory (ESO) announced Wednesday.

Hubble telescope finds fifth moon near Pluto.


WorldWide Tech & Science. Francisco De Jesùs.



This image, taken by the NASA/ESA Hubble Space Telescope, shows five moons orbiting the distant, icy dwarf planet Pluto. The green circle marks the newly discovered moon, designated S/2012 (134340) 1, or P5, as photographed by Hubble's Wide Field Camera 3. (AFP Photo/)

Hubble telescope finds fifth moon near Pluto.

US astronomers have found a fifth moon orbiting far-away Pluto, NASA said on Wednesday.

The irregular-shaped moon, nicknamed S/2012 for now, is about six to 15 miles (10 to 24 kilometers) across, the US space agency said.

Last year, astronomers reported finding the fourth moon around the icy dwarf planet some three billion miles away.

"The moons form a series of neatly nested orbits, a bit like Russian dolls," said Mark Showalter of the SETI Institute in Mountain View, California.

Pluto's largest moon, Charon, is 648 miles across. The other two, Nix and Hydra, are between 20 and 70 miles in diameter, NASA said.

Hubble -- a potent space telescope that has transformed the field of astronomy since it was first launched in 1990 -- discovered Nix and Hydra in 2005. Astronomers at the US Naval Observatory glimpsed Charon in 1978.

Pluto, once known as the ninth planet from the Sun, was declassified as a full-fledged planet in August 2006 and joined the new category, dwarf planet.

At about 1,430 miles wide, it is about two-thirds the size of the moon and has a mass less than one percent of the Earth's.




Tuesday, June 12, 2012

NASA rover to land on Mars in August.


WorldWide Tech & Science. Francisco De Jesùs.

NASA rover to land on Mars in August.

LOS ANGELES (AP) Two months before NASA is set to land its most sophisticated rover on Mars, engineers on Earth are busy troubleshooting a nagging concern with the rover's drill that could contaminate rock samples gathered for study.

Project managers said Monday they were confident the rover nicknamed Curiosity will still be able to achieve its goals despite the hurdle.

For the past month, a team has been studying ways to get around the contamination problem, in which flakes of Teflon from the drill can break off and get mixed in with the rock samples. The effort so far has drained $2 million from the mission's reserve budget.

"It's not a serious problem because we see so many potential ways to work around this," said chief scientist John Grotzinger of the California Institute of Technology.

Curiosity is on target to land at Gale Crater near the Martian equator in early August. Instead of relying on airbags to land like previous Mars surface missions, Curiosity will be lowered to the surface on a tether and fire its thrusters to touch down. This never-before-tried landing technique has allowed scientists to zero in on the landing site.

Curiosity is now slated to land closer to a mountain in the center of the crater, which will cut down on the amount of driving it will initially need to do.

Project manager Pete Theisinger of the NASA Jet Propulsion Laboratory estimated this will save about four months of driving, allowing more time to study Martian rocks and soil.

The two-year, $2.5 billion mission seeks to determine whether the environment could have been suitable for microbial life. One of the main goals is to search for the organic building blocks of life using the most advanced toolkit sent to Mars.

Curiosity is a mobile science lab. The drill is located at the end of its robotic arm along with a scoop. It's designed to bore into bedrock and scoop up powdered grains that are then transferred to Curiosity's deck to analyze.

Tests before launch revealed Teflon from the drill can rub off and taint the samples. Some workarounds being considered include baking the samples so that the contaminant is separated out. The team is also pondering switching to a different, gentler drilling mode in certain cases.

In the worst case scenario, scientists may have to rely on the scoop to collect soil and Curiosity's wheels to crush rocks into bits.
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Follow Alicia Chang's coverage at http://www.twitter.com/SciWriAlicia .
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Online:
http://www.nasa.gov/msl