Archive for nasa scientist

NASA Testing New Global Precipitation Measurement Equipment In Md.

GREENBELT, Md. (WJZ)—We are in an era where climate change and our carbon footprint are under the microscope. Scientists are constantly trying to learn more about these issues.

Kai Jackson reports a new program shows once again Maryland is at the forefront of research.

Scientists can forecast rain. But knowing the long-term effects on crops adds to the value of that information.

Technology can forecast snow, hurricanes or other severe weather, yet understanding the human impact on the planet is data that’s equally important.

“There’s no question about climate change from our point of view as scientists or about human causation,” said Peter Hildebrand, NASA Earth Sciences.

Analyzing weather-related events with pinpoint accuracy is the goal of NASA’s global precipitation measurement program.

It’s a satellite mission that will launch in 2014 in partnership with scientists from Japan and several other countries.

“Rain may fall in your backyard, but rain falls globally. And we need to understand it globally so we need to have these global measurements and global partnerships,” said Gail Skofronic-Jackson, NASA scientist.

The state-of-the-art equipment is being tested at NASA’s Greenbelt location.

On Friday scientists gathered to explain how it will work.

They hope it will provide the kind of information that would help in the event of disasters like Hurricane Sandy last year.

“What we want to be able to do with the GPM mission is to look at those hot towers and look at the hurricanes and the storms as they move outside of the tropics so that we can better forecast whether they’re going to intensify or not,” Skofronic-Jackson said.

NASA says the GPM satellite will orbit at 250 miles from the planet. That’s considered a low Earth orbit. Scientists say the shorter distance will provide a small but focused footprint of observation.

 NASA Testing New Global Precipitation Measurement Equipment In Md.

Article source: http://baltimore.cbslocal.com/2013/04/12/nasa-testing-new-global-precipitation-measurement-equipment-in-md/

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The NASA scientist and the Nats anthem


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While he was driving his then-grade-school-aged son to their first opening day together a quarter-century ago, Dr. Barry Geldzahler asked the lad whether he knew the national anthem.

“Take Me Out to the Ballgame?” the boy asked.

“Close enough,” Geldzahler remembered responding.

The story occurred to NASA’s chief scientist for space communications and navigation while explaining why he composed a song about baseball, and specifically, an anthem for his favorite team, the Nats.

“I thought, this should make people happy,” Geldzahler told me this week. “We didn’t want it real complicated. We wanted something simple, a melody that people could remember four, five, six beers down….Something that people can carry with them when they leave the stadium or on the way there, just something to get people going.”

The result was “Let’s Go Nats,” a ditty that variously references the Racing Presidents, Half Street and, of course, Natitude. Geldzahler, 64, played music in high school before getting more serious about it in recent years; his biggest musical inspiration remains the Beatles, whom he saw twice in concert. That’s why he helped NASA beam the band’s “Across the Universe” into deep space, aimed at Polaris, traveling 186,000 miles per second, a few years back.

“I’ve been a Beatles fan for 45 years – as long as the Deep Space Network has been around,” he said at the time. “What a joy, especially considering that ‘Across the Universe’ is my personal favorite Beatles song.”

(As an aside, a senior NASA scientist and SABR member who beams Beatles tunes into deep space is such a perfect representation of the Nats fanbase. “I can get you to Mars, but I can’t get you from Point A to Point B on Earth without a GPS system,” he joked. Love this town.)

Anyhow, he hoped to eventually get the Nats interested in playing the song, at least on NASA Night in July. His son — who this season accompanied Geldzahler to their 25th opening day together — is lukewarm on the tune; “some people will like it, but it’s more of an ’80s-type style,” he told his father. No matter. The composer listens to the song in his car on gamedays, and does some chair dancing, and thinks he can hear some of the joy he was trying to create.

“I mean, finally we’ve got a real winner here,” he said. “That’s sort of what we wanted for ‘Let’s Go Nats,’ just something people could be happy about.”

Article source: http://www.washingtonpost.com/blogs/dc-sports-bog/wp/2013/04/10/the-nasa-scientist-and-the-nats-anthem/

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NASA: Ancient Mars Had ‘Key Ingredients for Life’

This false-color map shows the area within Gale Crater on Mars, where NASA's Curiosity rover landed on Aug. 5, 2012, and the location where Curiosity collected its first drilled sample at the John Klein rock.

This false-color map shows the area within Gale Crater where NASA’s Curiosity collected its first drilled sample at the “John Klein” rock.

Mars once had conditions that could have supported life, according to a new analysis of rocks on the planet.

Ancient Mars had some “key chemical ingredients for life,” including sulfur, nitrogen, hydrogen, oxygen and carbon, NASA announced Tuesday. The findings are the latest from the Mars Curiosity Rover’s analysis of rocks in Mars’ Gale Crater.

[PHOTOS: Curiosity Lands on Mars]

“A fundamental question for this mission is whether Mars could have supported a habitable environment,” Michael Meyer, lead scientist for NASA’s Mars Exploration Program, said in a statement. “From what we know now, the answer is yes.”

This side-by-side comparison shows the X-ray diffraction patterns of two different samples collected from the Martian surface by NASA's Curiosity rover.

NASA’s Curiosity rover is a one-ton robotic vehicle that has been exploring the Martian surface since it landed there last summer. The rover is outfitted with an onboard chemistry lab designed to test whether Mars has or once had life. Tuesday’s discovery was made after the rover drilled into its first rock, allowing scientists a better understanding of the planet’s chemical makeup.

The analysis also suggests that Mars may have once had “relatively fresh water” in an area known as Yellowknife Bay. According to NASA, the clay found there was “not harshly oxidizing, acidic or extremely salty.” The agency hasn’t said how long ago these chemicals may have existed, but suggested that they are “very ancient.”

Paul Mahaffy, a NASA scientist at its Goddard Spaceflight Center in Greenbelt, Md., said in a statement that the chemicals could have once served as an energy source for microbial organisms such as bacteria.

This set of images compares rocks seen by NASA's Opportunity rover and Curiosity rover at two different parts of Mars. On the left is  Wopmay rock, in Endurance Crater, Meridiani Planum, as studied by the Opportunity rover. On the right are the rocks of the Sheepbed unit in Yellowknife Bay, in Gale Crater, as seen by Curiosity.

“The range of chemical ingredients we have identified in the sample is impressive, and it suggests pairings such as sulfates and sulfides that indicate a possible chemical energy source for micro-organisms,” he said.

More News:

Article source: http://www.usnews.com/news/articles/2013/03/12/nasa-ancient-mars-had-key-ingredients-for-life

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NASA rover unveils Mars was habitable

NASA scientists say tests on a Mars rock show the planet could have supported primitive life.

At a briefing at NASA’s Washington headquarters on Tuesday, NASA scientist said that an analysis of a Mars rock sample by the Curiosity rover had unveiled minerals, including hydrogen, carbon and oxygen, that are the building blocks of life, NASA said on Tuesday.

“A fundamental question for this mission is whether Mars could have supported a habitable environment,” said Michael Meyer, lead scientist for NASA’s Mars Exploration Programme. “From what we know now, the answer is yes.”

The six-wheeled robot, with 10 scientific instruments on board, is the most sophisticated ever sent to another planet.

The rock sample was drilled from a sedimentary bedrock sample and found to contain clay minerals, sulfate minerals and other chemicals.

Based on the analysis of those chemicals, researchers were able to determine that the water that helped form the rocks were of a relatively neutral pH.

“We have found a habitable environment that is so benign and supportive of life, that probably if this water was around and you had been there, you would have been able to drink it,” said John Grotzinger, Curiosity project scientist from the California Institute of Technology.


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Article source: http://www.aljazeera.com/news/americas/2013/03/2013312182434631161.html

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Russian meteor explosion not caused by asteroid flyby, NASA scientist says

The meteor explosion over Russia that injured more than 500 people and damaged hundreds of buildings was not caused by an asteroid zooming close by the Earth Friday afternoon, a NASA scientist says.

NASA asteroid expert Don Yeomans, head of the agency’s Near-Earth Object Program Office, told SPACE.com that the object which exploded over a thinly inhabited stretch of eastern Europe today was most likely an exploding fireball known as a bolide.

‘It pancaked and exploded.’

- NASA asteroid expert Don Yeomans, head of the agency’s Near-Earth Object Program Office

More than 500 people were injured, mostly by glass cuts when windows shattered during the blast, according to the Russian Emergency Ministry.

“If the reports of ground damage can be verified, it might suggest an object whose original size was several meters in extent before entering the atmosphere, fragmenting and exploding due to the unequal pressure on the leading side vs the trailing side (it pancaked and exploded),” Yeomans told SPACE.com in an email. “It is far too early to provide estimates of the energy released or provide a reliable estimate of the original size.” [Photos of Russia's Meteor Fireball Blast]

Yeoman stressed that the bolide event was likely not associated at all with the incoming asteroid 2012 DA14, which will fly within 17,200 miles of Earth when it passes safely by our planet today.

“The asteroid will travel south to north,” Yeomans said. “The bolide trail was not south to north and the separation in time between the fireball and 2012 DA14 close approach is significant.”

Asteroid 2012 DA14 is 150 feet wide — about half the size of a football field — and will make its closest approach to Earth at 2:24 p.m. EST (1924 GMT) when it passes over Indonesia. It will be about 5,000 miles closer to Earth than the communications satellites circling the planet in geosynchronous orbits.

NASA scientists and professional and amateur astronomers around the world have been tracking asteroid 2012 DA14 since it was first discovered by a team of amateurs in February 2012. Not only does the asteroid pose no threat to Earth during today’s flyby, but it will not hit Earth for the foreseeable future, NASA scientists have said.

Visit SPACE.com today for complete coverage of asteroid 2012 DA14′s flyby.

Article source: http://www.foxnews.com/science/2013/02/15/russian-meteor-explosion-not-caused-by-asteroid-flyby-nasa-scientist-says/

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Big Strides Made in Tracking Near-Earth Asteroids, NASA Scientist Says

Astronomers have found 90 percent of the largest near-Earth asteroids that could threaten Earth.

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People Are Writing To NASA About The World Ending Like It’s Santa Claus And …

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NASA/Screenshot

If you haven’t already heard, the world is supposed to end this Friday.

The Mayan Calendar, the most robust calendar ever made, suggests the world was created on August 11, 3114 BC. Then, the Mayan calendar would have looked like this: 13-0-0-0-0.

This Friday, on December 21,2012, it’s supposed to look the. Exact. SAME.

This information has people all over the world concerned. Shelves in Russia have been picked over. People have bought bunkers. And NASA is receiving letters.

A lot of letters. Kind of like the letters children send Santa Claus at Christmas time.

David Morrison is a NASA scientist who runs an “Ask an Astrobiologist” column for the program’s website. He tells the Awl he’s received about 5,000 end of the world emails in the past four years.  Lately, he’s been receiving about 50 per week about this Friday.

“I don’t know why they write to NASA at all,” he told The Awl. “Probably because there’s nowhere else to write.”

It’s hard for him to tell where most of the emails come from, but there seems to be a lot of questions coming from India and Pakistan. He says emails frequently begin like this:

“Dear sir, I know you work for the government and cannot be trusted since Congress has passed a law making it illegal for anyone to tell the public about an incoming near-Earth object, but…”

He says many of the emails he receives from the US that do include ages are from middle schoolers.

Morrison recited some of the concerns verbatim to The Awl:

“I know that everyone has been asking you the same question but how do I know the world is not going to end by a planet or a flood or something? I’m scared because I’m in 10th grade and I have a full life ahead of me so PLEASE I WOULD REALLY LIKE AN ANSWER TO MY QUESTION.”

“I am really scared about the end of the world on 21 December. I’m headed into 7th grade and I am very scared. I hear you work for the government and I don’t know what to do. Can someone help me? I can’t sleep, I am crying every day, I can’t eat, I stay in my room, I go to a councilor, it helps, but not with this problem. Can someone help me?”

Here’s the full interview with Morrison on The Awl

Article source: http://www.businessinsider.com/people-are-writing-to-nasa-about-the-world-ending-like-its-santa-claus-and-christmas-2012-12

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NASA Patiently Explains Why the Mayan Apocalypse Is *Definitely* Not Happening

“December 22, 2012. If you’re watching this video, it means one thing: the world didn’t end yesterday,” this video begins. Yes, NASA is so confident the world won’t end that they released the video early. Pretty sassy for a bunch of earnest scientists. 

What about those dire predictions? “The whole thing was a misconception from the very beginning,” Dr. John Carlson, Director of the Center for Archaeoastronomy, says. The ancient civilization’s math is complex but they did not predict the world would end this month. Their calendar doesn’t even end in 2012! What about potential hazards like a collision with an asteroid or “rogue planet”? That’s not on the horizon either. If you’re still skeptical, watch the video below and check out the Awl’s very entertaining interview with Dr. David Morrison, the NASA scientist responsible for fielding all your dumb questions via email:

The emails started filtering in at a trickle, but after a few years of what he called “relative peace,” it’s become a deluge. He estimated that over the past four years, he’s gotten over 5,000 emails related to doomsday. Lately, the column has been receiving about 50 emails a week, most of them about the apocalypse …

“I have become somewhat obsessed with it,” [Morrison] said. Even if the interactions don’t usually go beyond two emails, he never tires of hearing the responses. “It’s the depths of their commitment that’s so amazing, that they will go to such mental contortions to try to think of a way to preserve their beliefs in spite of evidence to the contrary.”

For more videos from NASA, visit http://nasa.gov/.

Via Devour and Gizmodo

Article source: http://www.theatlantic.com/technology/archive/2012/12/nasa-patiently-explains-why-the-mayan-apocalypse-is-definitely-not-happening/266242/

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December 21, 2012: NASA Scientist Says 25 Million Americans Stockpiling …

December 21, 2012 may or may not be doomsday but apparently at least 25 million people think that there won’t be a Christmas this year because of the Mayan apocalypse.

That’s a pretty scary statistic considering that a good percentage of these people are probably hoarding guns and other weapons to protect themselves from the impending doom. Will these people go crazy on December 20, ahead of the supposed end date?

Apparently, that thought is worrisome to NASA and the US government. A senior NASA scientist went on Current TV in yet another effort to quell the rising panic about the approaching doomsday date.

“A lot of young people believe this and that is pretty scary. I hear from kids who say they can’t eat, they can’t sleep, they’re considering suicide…” said NASA scientist David Morrison. “There’s a poll that suggest that 25 million Americans don’t expect to see Christmas this year…I worry about those people. There’s nothing that’s going to happen to the earth, no cosmic catastrophe. But it’s a little scary to think of millions of people who are storing up guns and ammo and machetes. I just hope they stay in their hole on the 21st and don’t come out and make a mess.”

He’s right. If all the people who think the world will be ending on December 21, 2012 come out a day or so ahead of time and kill people, rob stores or cause all out chaos, there really will be a disaster of epic proportions.

Are you worried about the 25 million people expecting a doomsday type scenario on 12/21/12? Do you think there will be mass chaos whether the Mayans were right or not?

Photo courtesy of The Awl

Article source: http://news.gather.com/viewArticle.action?articleId=281474981804857

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NASA scientist warns Doomsday talk and fears could endanger young people …

Have an impressionable youngster in your home? A tween? A teen that has taken an interest in the Mayan calendar doomsday prophecies? With all the talk about the end of the world as we know it, a possible armageddon, or some apocalyptic event occurring on December 21, more and more information about the coming of the end is taking over the media, a lot of it due to various theories and myths that coincide with the end of the Maya calendar. One NASA scientist has become increasingly alarmed that the information is affecting impressionable minds, that all the talk of gloom and doom could be setting up true doomsdays on individual levels.

“I think it was about 4 years ago, early in 2008, I started getting 5 questions a day about 2012, and now it has increased,” David Morrison of the NASA Astrobiology Institute told ABCNews.com. “The most common question is, ‘Will the world end on December 21, 2012?’ I find that strange because the idea of the world ending is absurd. Do they really think, ‘The world is ending, but if I build a bomb shelter in my back yard, I’ll survive’?”

A sky caiman vomits water on one of the last pages of the 12th-century Dresden Codex, one of four historic Mayan manuscripts that still exist and that together suggest modern civilization will come to an end. Doomday date: December 21, 2012.

Although the astrobiologist admitted that most of the specific questions revolve around the existence of the planet Nibiru, a hidden planet theorized by Zecharia Sitchin that will return in its long elliptical orbit around the Sun to pass by the Earth sometime in the future (which is often conflated with Nancy Lieder’s Planet X collision/polar shift nonsense that was supposed to occur in 2003, didn’t, and was moved to 2012), he finds some messages from young enquirers that disturb him.

“I get 1-2 a month from a person who self-identifies as 11-12 years old, who is contemplating suicide,” Morrison said. “It happens often enough to disturb me … to hear that children are considering ending their lives.”

Much of it has to do with the Maya calendar, which has been translated to show that its last date is December 21, 2012. Add in religious overtones, the second coming of Christ, other end-times philosophies and religions, global warming, fears of financial collapses, world-wrecking war scenarios, plague and/or biological warfare catastrophes, EMP bursts from the Sun, pseudoscientific ideas about polar shifts, galactic alignment theories, and many other ideas and theories (used singly or in various combinations) and you have a lot of doomsday talk.

The problem is: Most of it is scientifically unsound, mischaracterized theories, and/or plain and simple modern mythology. Like Sitchin’s Nibiru, which he claims in his books on the subject to have derived from the Sumerian cuneiform tablets. Sitchin is credited with being one of the founders of the ancient alien theory that extraterrestrials once dwelt on or colonized Earth and/or aided humanity in its development.

The belief that the Maya calendar is a harbinger of doom is also a modern myth. The calendar, like most calendars, has an end date. The next day, a new calendar is needed to mark off the next period of time. It does not in any way indicate that time is actually coming to an end. In fact, as was explained nearly a year ago in an article at LiveScience, 2012 is just another year.

“It’s purely a fantasy,” the NASA scientist told ABC News. “It amazes me you can get so much … I sense that some of these people are into the conspiracy issues.”

Morrison once received a letter from a middle school teacher worried about a family who believed the end was coming on Dec. 21. The parents planned to kill their two children and themselves.

Most contacts are through emails, so Morrison attempts to assuage the fears of those who write to him through the simple conduit at hand. But, as he readily acknowledges, he’s not a psychiatrist.

NASA provided a video debunking several of the doomsday and apocalypse scenarios earlier this year.

The crux of the matter is this: You cannot stop people from believing what they want to believe or keep them from channeling certain information into reinforcing positions that result in unsubstantiated and/or non-empirically grounded theories or ideas. Hopefully, Morrison and NASA and others not caught up in all the doomsday drama (as factual reality) can forestall the delusional, the believers, and especially the young and impressionistic long enough to at least get to December 22. Some will certainly only shift gears and recalibrate another doomsday. The 11- and 12-year-olds will have time to rethink the end of time and a myriad other things. But at least they will be around to do the recalculations and the rethinking.

Article source: http://www.examiner.com/article/nasa-scientist-warns-doomsday-talk-and-fears-could-endanger-young-people

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