Tag: operate (page 2 of 5)

Spacecraft found on Mars – and it’s ours

January 21, 2015 / / 0 Comments




Computer image of the Beagle 2


Excerpt from skyandtelescope.com
By Kelly Beatty  


On December 25, 2003, a British-built lander dropped to the Martian surface and disappeared without a trace. Now we know what happened to it.  It's hard to overstate how valuable the main camera aboard the Mars Reconnaissance Orbiter has been. The craft's High-Resolution Imaging Science Experiment, or HiRISE, uses a 20-inch (0.5-m) f/24 telescope to record details on the Martian surface as small as 0.3 m (about 10 inches). 

Beagle 2 seen from orbit by HiRISE
An overhead view of Beagle 2's landing site on Isidis Planitia shows a bright reflection from the long-lost spacecraft. Apparently it landed safely on December 25, 2003, and had begun to operate when it failed. NASA's Mars Reconnaissance Orbiter recorded this image on December 15, 2014. NASA / JPL / Univ. of Arizona / Univ. of Leicester - See more at: http://www.skyandtelescope.com/astronomy-news/beagle-2-lander-found-on-mars-01192015/#sthash.5KSZ8V6W.dpuf


Primarily it's a powerful tool for studying Martian geology at the smallest scales, and NASA scientists sometimes use it to track the progress (and even the arrivals) of their rovers. Beagle 2 on Mars  The clamshell-like Beagle 2 lander weighed just 30 kg, but it was well equipped to study Martian rocks and dust — and even to search for life. Beagle 2 consortium  But the HiRISE team has also been on a years-long quest to find the remains of Beagle 2, a small lander that had hitchhiked to the Red Planet with the European Space Agency's Mars Express orbiter. It descended to the Martian surface on Christmas Day in 2003 and was never heard from again. Space aficionados have debated its fate ever since. Did parachute failure lead to a crash landing? Did strong surface winds flip the saucer-shaped craft upside down? Did the Martians take it hostage?  Now, thanks to HiRISE, we know more of the story.  
An overhead view of Beagle 2's landing site on Isidis Planitia shows a bright reflection from the long-lost spacecraft. Apparently it landed safely on December 25, 2003, and had begun to operate when it failed. NASA's Mars Reconnaissance Orbiter recorded this image on December 15, 2014. NASA / JPL / Univ. of Arizona / Univ. of Leicester 


Images taken in February 2013 and June 2014 of the landing area in Isidis Planitia showed promising blips near the edge of each frame. A follow-up color view, acquired on December 15th and released three days ago, show a bright spot consistent with Beagle 2. The fully-opened lander would have been less than 2 m (6½ feet) across, so the craft is only barely resolved. Apparently the spacecraft made it to the surface intact, opened its clamshell cover, and had partially deployed its four petal-shaped solar-cell panels before something went awry. Beagle 2 seen from orbit by HiRISE  

One encouraging clue is that the bright reflection changes position slightly from image to image, consistent with sunlight reflecting off different lander panels. Two other unusual spots a few hundred meters away appears to be the lander's parachute and part of the cover that served as a shield during the 5½-km-per-second atmospheric descent...


On December 25, 2003, a British-built lander dropped to the Martian surface and disappeared without a trace. Now we know what happened to it.
It's hard to overstate how valuable the main camera aboard the Mars Reconnaissance Orbiter has been. The craft's High-Resolution Imaging Science Experiment, or HiRISE, uses a 20-inch (0.5-m) f/24 telescope to record details on the Martian surface as small as 0.3 m (about 10 inches). Primarily it's a powerful tool for studying Martian geology at the smallest scales, and NASA scientists sometimes use it to track the progress (and even the arrivals) of their rovers.
Beagle 2 on Mars
The clamshell-like Beagle 2 lander weighed just 30 kg, but it was well equipped to study Martian rocks and dust — and even to search for life.
Beagle 2 consortium
But the HiRISE team has also been on a years-long quest to find the remains of Beagle 2, a small lander that had hitchhiked to the Red Planet with the European Space Agency's Mars Express orbiter. It descended to the Martian surface on Christmas Day in 2003 and was never heard from again. Space aficionados have debated its fate ever since. Did parachute failure lead to a crash landing? Did strong surface winds flip the saucer-shaped craft upside down? Did the Martians take it hostage?
Now, thanks to HiRISE, we know more of the story. Images taken in February 2013 and June 2014 of the landing area in Isidis Planitia showed promising blips near the edge of each frame. A follow-up color view, acquired on December 15th and released three days ago, show a bright spot consistent with Beagle 2. The fully-opened lander would have been less than 2 m (6½ feet) across, so the craft is only barely resolved. Apparently the spacecraft made it to the surface intact, opened its clamshell cover, and had partially deployed its four petal-shaped solar-cell panels before something went awry.
Beagle 2 seen from orbit by HiRISE
An overhead view of Beagle 2's landing site on Isidis Planitia shows a bright reflection from the long-lost spacecraft. Apparently it landed safely on December 25, 2003, and had begun to operate when it failed. NASA's Mars Reconnaissance Orbiter recorded this image on December 15, 2014.
NASA / JPL / Univ. of Arizona / Univ. of Leicester
One encouraging clue is that the bright reflection changes position slightly from image to image, consistent with sunlight reflecting off different lander panels. Two other unusual spots a few hundred meters away appears to be the lander's parachute and part of the cover that served as a shield during the 5½-km-per-second atmospheric descent.
The initial images didn't just show up. They'd been requested and searched by Michael Croon of Trier, Germany, who'd served on the Mars Express operations team. Croon had asked for specific camera targeting through a program called HiWish, through which anyone can submit suggestions for HiRISE images. Read more about this fascinating sleuthing story.
"Not knowing what happened to Beagle 2 remained a nagging worry," comments Rudolf Schmidt in an ESA press release about the find. "Understanding now that Beagle 2 made it all the way down to the surface is excellent news." Schmidt served as the Mars Express project manager at the time.
Built by a consortium of organizations, Beagle 2 was the United Kingdom's first interplanetary spacecraft. The 32-kg (73-pound) lander carried six instruments to study geochemical characteristics of the Martian surface and to test for the presence of life using assays of carbon isotopes. It was named for HMS Beagle, the ship that carried a crew of 73 (including Charles Darwin) on an epic voyage of discovery in 1831–36.
- See more at: http://www.skyandtelescope.com/astronomy-news/beagle-2-lander-found-on-mars-01192015/#sthash.5KSZ8V6W.dpuf

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Google’s ‘goofy’ new self-driving car a sign of things to come

December 22, 2014 / / 0 Comments

Google's latest prototype of its self-driving vehicle was unveiled Monday, Dec. 22, 2014. (Google photo) Excerpt from mercurynews.comMOUNTAIN VIEW -- Google unveiled its first "fully functional" prototype for its own self-driving car Monday and plans...

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Giant Dunes on Saturn’s Moon Titan

December 8, 2014 / / 0 Comments





Excerpt from space.com

The towering dunes on Saturn's largest moon, Titan, may look similar to the sandy hills of Earth's Sahara, but their origins are completely different, researchers say. Instead of forming continuously over time like on Earth, Titans dunes are forged by short, powerful rogue winds.

Reaching heights of more than 300 feet (91 meters), the dunes of Titan present a puzzling mystery: they seem to form in the opposite direction as Titan's steady east-to-west winds. Two new studies suggest that rare bursts of wind blowing westward are responsible for these enormous structures. The findings shed light on the remote satellite that shares many qualities with Earth.

"It was a bear to operate, but Dr. Burr's refurbishment of the facility as a Titan simulator has tamed the beast. It is now an important addition to NASA's arsenal of planetary simulation facilities," John Marshall, of the SETI Institute, and a co-author on the new research, said in the statement.

Titan's dunes are not made of the kind of sand found in deserts on Earth, but a more viscous material. Scientists don't know exactly what it is, only that it is made of hydrogen and carbon — two ingredients that can be used to create a laundry list of different materials on Earth, from methane to paraffin wax. According to Burr, the hydrogen-carbon material may coat particles of water ice.
The researchers found that the regular east-to-west winds are not strong enough to shape the viscous material into the massive dune shapes that are observed. Instead, they believe the dunes are shaped by short, rapid bursts of westerly wind. The winds on Titan "occasionally reverse direction and dramatically increase in intensity due to the changing position of the Sun in its sky," the statement said.

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Rosetta mission: Philae lander bounces twice, lands on side ~ Cliff face blocking solar power

November 13, 2014 / / 0 Comments


How Esa scientists believe Philae has landed on the comet – on its side
How Esa scientists believe Philae has landed on the comet – on its side. Photograph: European Space Agency/Reuters


Excerpt from
theguardian.com


Rosetta mission controllers must decide whether to risk making lander hop from shadow of cliff blocking sunlight to its solar panels.


The robotic lander that touched down on a comet on Wednesday came to rest on its side in the shadow of a cliff, according to the first data beamed home from the probe.

Pictures from cameras on board the European Space Agency’s Philae lander show the machine with one foot in the sky and lodged against a high cliff face that is blocking sunlight to its solar panels.
The precarious resting place means mission controllers are faced with some tough decisions over whether to try and nudge the spacecraft into a sunnier spot. If successful, that would allow Philae to fully recharge its batteries and do more science on the comet, but any sudden move could risk toppling the lander over, or worse, knock it off the comet completely.

The washing machine-sized lander was released by its Rosetta mother ship at 0835am GMT on Wednesday morning and touched down at a perfect spot on the comet’s surface. But when anchoring harpoons failed to fire, the probe bounced back off into space. So weak is the gravitational pull of the comet that Philae soared 1km into the sky and did not come down again until two hours later. “We made quite a leap,” said Stephan Ulamec, the Philae lander manager.

In the time it took the probe to land for the second time, the comet had rotated, bringing more treacherous terrain underneath. The spacecraft bounced a second time and finally came to a standstill on its side at what may be the rim of an enormous crater.

“We bounced twice and stopped in a place we’ve not entirely located,” said Jean-Pierre Bibring, Philae’s lead scientist. Teams of scientists are now trying to work out where the probe is. What mission controllers do know is that they are not where they hoped to be. “We are exactly below a cliff, so we are in a shadow permanently,” Bibring added.

With most of Philae in the dark, the lander will receive only a fraction of the solar energy that Esa had hoped for. The spacecraft needs six or seven hours of sunlight a day but is expected to receive just one and a half. Though it can operate for 60 hours on primary batteries, the probe must then switch to its main batteries which need to be recharged through its solar arrays. If Philae’s batteries run out it will go into a hibernation mode until they have more power.

The spacecraft was designed with landing gear that could hop the probe around, but from its awkward position on its side the option is considered too risky.

Though caught in a tight spot, the Philae lander’s systems appear to be working well. The Rosetta spacecraft picked up the lander’s signal on Thursday morning and received the first images and more instrument data from the surface of the comet.

One of Philae’s major scientific goals is to analyse the comet for organic molecules. To do that, the lander must get samples from the comet into several different instruments, named Ptolemy, Cosac and Civa. There are two ways to do this: sniffing and drilling. Sniffing involves opening the instruments to allow molecules from the surface to drift inside. The instruments are already doing this and returning data.

Panoramic view around the point of Philae's final touchdown on the surface of comet 67P, taken when Rosetta was about 18km from centre of comet. Parts of Philae's landing gear can be seen in this picture.
Panoramic view around the point of Philae’s final touchdown on the surface of comet 67P, taken when Rosetta was about 18km from centre of comet. Parts of Philae’s landing gear can be seen in this picture.Photograph: European Space Agency/AFP/Getty Images

Drilling is much riskier because it could make the lander topple over... Pushing down into the surface will push the lander off again. “We don’t want to start drilling and end the mission,” said Bibring.
But the team has decided to operate another moving instrument, named Mupus, on Thursday evening. This could cause Philae to shift, but calculations show that it would be in a direction that could improve the amount of sunlight falling on the probe. A change in angle of only a few degrees could help. A new panoramic image will be taken after the Mupus deployment to see if there has been any movement.

Meanwhile, the Rosetta orbiter team will continue to try to pinpoint Philae’s position.

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Google to lease former Nasa airfield for space research

November 12, 2014 / / 0 Comments


Hangar One
Google will restore Hangar One which has become a landmark in Silicon Valley

Excerpt from

bbc.com



Google latest "moonshot" is an apt one - it is investing in a Nasa-owned airfield to expand research into space exploration and robotics.

Planetary Ventures, an offshoot of Google, will take over management of the Moffett Federal Airfield.

The airfield is already regularly used as a landing strip for the private jets of the firm's billionaire executives.

Google has not divulged exactly how the site will be used.
But, according to a Nasa press release, the site will be used for "research, development, assembly and testing in the areas of space exploration, aviation, rover/robotics and other emerging technologies".

For Nasa, the sale offers rich pickings - the agreement will provide it with $1.16bn (£731m) in rent over the initial 60-year lease term.

"As Nasa expands its presence in space, we are making strides to reduce our footprint here on Earth," said Nasa administrator Charles Bolden. 

And for Google, the investment represents an opportunity to restore an iconic building.

Part of the deal includes the restoration of Hangar One, an important landmark in Silicon Valley. Built in 1933, it is one of the world's largest free-standing structures.


Moffett Federal Airfield golf courseThere is also a golf course on the site


Planetary Ventures plans to invest more than $200m in rebuilding Hangar One and two other hangars on the site.

It will create an educational facility where the public can explore the site's legacy and the role of technology on it.


Very little is known about Planetary Ventures, the firm behind the deal. Press reports describe it as shell organisation for real estate deals although the name hints at something more. 

The base, previously maintained by Nasa's Ames Research Center, is located four miles from Google's Mountain View headquarters.


Space Projects

It is not the first time Google has invested in unusual purchases. Two mysterious barges that appeared on the coasts of San Francisco and Portland, Maine, last year turned out to be Google-owned.

It emerged that Google intended to use them as floating showcases for new products such as Google Glass and its self-driving cars. The project was later abandoned after coastguard officials deemed them to be a fire risk.

(It is not) the first time that Google has worked with Nasa. Back in 2005, Google built an office at Nasa's research facility in order to co-operate on a range of projects.

More recently, the two teamed up to launch a new laboratory, focused on advancing machine learning, also based at Nasa's research centre.

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Think You Could Live on Mars? Think Again

October 15, 2014 / / 0 Comments



Excerpt from
time.com

A new analysis of Mars One's plans to colonize the Red Planet finds that the explorers would begin dying within 68 days of touching down


Hear that? That’s the sound of 200,000 reservations being reconsidered. Two hundred thousand is the announced number of intrepid folks who signed up last year for the chance to be among the first Earthlings to colonize Mars, with flights beginning as early as 2024. The catch: the trips will be one way, as in no return ticket, as in farewell friends, family, charbroiled steaks and vodka martinis, to say nothing of such everyday luxuries as modern hospitals and, you know, breathable air.
But the settlers in Jamestown weren’t exactly volunteering for a weekend in Aspen either, and in both cases, the compensations—being the first people on a distant shore—seemed attractive enough. Now, however, the Mars plan seems to have run into a teensy snag. According to a new analysis by a team of grad students at MIT, the new arrivals would begin dying within just 68 days of touching down.


An artist concept of NASA's Mars Atmosphere and Volatile EvolutioN (MAVEN) mission. Launched in November 2013, the mission will explore the Red Planet’s upper atmosphere, ionosphere and interactions with the sun and solar wind.
The United Launch Alliance Atlas V rocket with NASA’s Mars Atmosphere and Volatile EvolutioN (MAVEN) spacecraft launches from the Cape Canaveral Air Force Station Space Launch Complex 41, Monday, Nov. 18, 2013, Cape Canaveral, Florida. NASA’s Mars-bound spacecraft, the Mars Atmosphere and Volatile EvolutioN, or MAVEN, is the first spacecraft devoted to exploring and understanding the Martian upper atmosphere. Photo Credit: (NASA/Bill Ingalls)
NASA's MAVEN spacecraft, inside a payload fairing, is hoisted to the top of a United Launch Alliance Atlas V rocket at the Vertical Integration Facility at Cape Canaveral Air Force Station's Space Launch Complex 41 on Nov. 8, 2013.
Inside the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, engineers and technicians perform a spin test of the Mars Atmosphere and Volatile Evolution, or MAVEN, spacecraft. The operation is designed to verify that MAVEN is properly balanced as it spins during the initial mission activities.
Lockheed Martin/NASA

The organizers of the burn-your-boats expedition is a group called Mars One, headed by Bas Lansdorp, a Dutch entrepreneur and mechanical engineer. As Lansdorp sees things, habitat modules and other hardware would be sent to the Red Planet in advance of any astronauts, who would arrive in four-person crews at two-year intervals—when Mars and Earth make their closest approach, which holds the outbound journey to a brief (relatively speaking) eight months. The crew-selection process would be part of (yes) a sponsored reality show, which would ensure a steady flow of cash—and since the settlers would grow their own food onsite, there would be little to carry along with them. All that would keep the overall cost of the project to a shoestring (relative again) $6 billion.

So what could go wrong? That’s what the four MIT students set out to find out, and the short answer is: a lot.

The biggest problem, the students discovered, concerns that business of breathable air. One of the things that’s always made Earth such a niftily habitable place to live is that what animals exhale, plants inhale, and vice versa. Since the Martian astronauts and their crops would be living and respiring in the same enclosed habitats, a perfect closed loop should result in which we provide them all the carbon dioxide they need and they return the favor with oxygen.

Only it doesn’t, the MIT students found. The problem begins with the lettuce and the wheat, both of which are considered essential crops. As lettuce matures, peaking about 30 days after planting, it pushes the 02 level past what’s known as .3 molar fractions, which, whatever it means, doesn’t sound terribly dangerous — except it’s also the point at which the threat of fire rises to unacceptable levels. That risk begins to tail off as the crop is harvested and eaten, but it explodes upward again, far past the .3 level, at 68 days when the far gassier wheat matures.

A simple answer would be simply to vent a little of the excess O2 out, which actually could work, except the venting apparatus is not able to distinguish one gas from another. That means that nitrogen—which would, as on Earth, make up the majority of the astronauts’ atmosphere—would be lost too. That, in turn, would lower the internal pressure to unsurvivable levels—and that’s what gets your 68-day doomsday clock ticking.

There is some question too about whether the hardware that Mars One is counting on would even be ready for prime time. The mission planners make much of the fact that a lot of what they’re planning to use on Mars has already been proven aboard the International Space Station (ISS), which is true enough. But that hardware is built to operate in microgravity—effectively zero g—while Mars’s gravity is nearly 40% of Earth’s. So a mechanical component that would weigh 10 lbs. on Earth can be designed with little concern about certain kinds of wear since it would weigh 0 lbs. in orbit. But on Mars it would be 4 lbs., and that can make all the difference.

“The introduction of a partial gravity environment,” the grad students write, “will inevitably lead to different [environmental] technologies.”

For that and other reasons, technical breakdowns are a certainty. The need for replacement parts is factored into Mars One’s plans, but probably not in the way that they should be. According to the MIT team, over the course of 130 months, spare parts alone would gobble up 62% of the payload space on resupply missions, making it harder to get such essentials as seeds, clothes and medicine—to say nothing of other crew members—launched on schedule.

Then too, there is the question of habitat crowding. It’s easy to keep people alive if you feed them, say, a single calorie-dense food product every day. But energy bars forever means quickly losing your marbles, which is why Mars One plans for a variety of crops—just not a big enough variety. “Given that the crop selection will significantly influence the wellbeing of the crew for the entirety of their lives after reaching Mars,” the authors write, “we opt for crop variety over minimizing growth area.”

Then there is the question of cost—there’s not a space program in history whose initial price tag wasn’t badly lowballed—to say nothing of maintaining that biennial launch schedule, to say nothing of the cabin fever that could soon enough set the settlers at one another’s throats. Jamestown may not have been a picnic, but when things got to be too much you could always go for a walk by the creek.

No creeks here, nor much of anything else either. Human beings may indeed colonize Mars one day, and it’s a very worthy goal. But as with any other kind of travel, the best part of going is often coming home.

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Schumann Resonance And The Time Speeding Up Phenomenon

September 15, 2014 / / 0 Comments

Time is actually speeding up (or collapsing). For thousands of years the Schumann Resonance or pulse (heartbeat) of Earth has been 7.83 cycles per second, The military have used this as a very reliable reference. However, since 1980 this resonance has been slowly rising. Some scientists believe that it is rising faster than we can measure seeing as it is constantly rising while measuring.This is from a member of the Physics Forum:"The universe is expanding; interstellar distances [...]

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Intention and the Rite of Disengagement

August 30, 2014 / / 0 Comments

What we participate in is pretty much the name of the game. What do we spend our time, energy and intention on? What are we consciously and/or subconsciously empowering that’s leading to our own dis-empowerment? Where attention and thus intention goes, energy flows. Where is ours going, collectively and individually? Something to seriously consider on a continual basis in this massively manipulated energetic world.I’ve been blown away recently by the rapid rise in consciousness [...]

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Galactic Federation of Light Magatha May-13-2013

May 13, 2013 / / 0 Comments

Magatha from Agartha ~ Introduction to some new Galactic civilisations that co-operate with us ~ As channeled by Méline Lafont
http://lafontmeline.wordpress.com/201…

Greetings beloved brethren of Earth.

It has been a

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Pleiadian Emissaries of Light May-06-2013

May 7, 2013 / / 0 Comments

Meredith Murphy — The Pleiadians for May 2013: Passage to Expansive Freedom
Thanks to Wes Annac:http://aquariusparadigm.com/2013/05/07/meredith-murphy-the-pleiadians-for-may-2013-passage-to-expansive-freedom/

Meretith’s Website:http://www.expectwonderful.com/
Greetings Dear Ones,

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Heaven Letters April-19-2013

April 19, 2013 / / 0 Comments

Heavenletter #4529 Be Gracious to God , April 19, 2013
Gloria Wendroff
http://www.heavenletters.org/be-gracious-to-god.html

God said:
It is better that you do not make Me your fall guy. It’s not

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Zen Gardner ~ Are You Alone? Or Strategically Placed! ~

March 30, 2012 / / 0 Comments

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29 March 2012

I hear from so many people who feel isolated and alone during this awakening and massive paradigm shift taking place around the globe. Spouses can’t wake up partners to the truth; family members and close frien...

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SaLuSa 19-December-2011

December 19, 2011 / / 0 Comments

Please do not let the reports of incidents caused by the activities of the dark Ones, distract you from your focus upon the year 2012. As you are finding out they are defiantly hitting out, to make a desperate last stand but it will not achieve anythin...

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