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First Images Of Philae Landing Released By ESA

November 16, 2014 By Jason Leathers Leave a Comment

Philae-landing

As per the recent reports revealed, the European Space Agency has published the images of the Philae probe moments after its initial touchdown.

No doubt, it was a menacing wait after the Philae lander leaped a mile back into space subsequent to its first contact with the comet 67/P.

The comet is successfully landed just few mins later, over half a mile away from its intended spot.

The comet’s landing images were first posted on the ESA’s Rosetta Blog, little blurred escorted by a dark pitch– which the experts believe is its shadow.

The ESA’s flight dynamic team observers spent long hour analyzing and evaluating the recording before their conclusion was made public.

The European Space Agency officials told that the comet has been sending images and other relevant data to Earth through the Rosetta satellite, however, as yet we don’t have access to photographs of the probe itself after landing.

Moreover, the ESA officials revealed that the probe is damaged during landing and its battery is not charging anymore. Actually, after running out of power, the battery is in stand-by mode. But engineers were constantly trying to maximize the possibility of recharging its power supply by sending a command to relocate the lander.

The relocation of the comet means to raise it by 4cm and rotate its main housing by 35 percent in order to ensure the largest panel catches the most light.

“With the information relayed by Philae until now, the agency is ‘hugely happy’”, Prof Mark McCaughrean, Esa’s senior scientific adviser said.

Filed Under: Tech & Science Tagged With: comet, Comet 67P, esa, ESA’s Rosetta Blog, European Space Agency, Mark McCaughrean, Philae, Philae Lander, Philae landing images, Rosetta satellite

Curiosity, Opportunity, but No View of Mars Sky Show

November 8, 2014 By Germaine Hicks Leave a Comment

Curiosity-Opportunity-but-No-View-of-Mars-Sky-Show

Researchers revealed this Friday in presenting initial scientific findings from the flyby, “A comet that zipped past Mars last month, dumped tons of dust into the planet’s atmosphere, providing a spectacular light show.”

A planetary scientist from University of Colorado, Nick Schneider, who was working on NASA’s Maven orbiter mission said that thousands of shooting stars — scraps of cometary dust burning up in the atmosphere — splashed across the Martian sky that night.

During NASA’s news conference, Dr. Schneider said, “It’s a very rare event in the entire history of humanity, and it would have been truly spectacular to the human eye.”

Robotic explorers limitations were highlighted, neither of NASA’s Martian rovers, Opportunity and Curiosity, successfully observed the shooting stars.

Dr. Schneider said, “We’ve got all these high-tech robots around, but I have to say, it might be the most sensitive scientific instrument of all to have a human lying outside with dark-adapted vision looking up at that sky.”

On 19th Oct, Opportunity was able to capture images of the comet, Siding Spring, as it passed within 87,000 miles of Mars. L. Green, director of NASA’s planetary sciences division, said, “Curiosity and Opportunity don’t capture movies. They just weren’t designed to be able to do that.”

Though, orbiting spacecraft vibrantly observed the effects of the dust. Maven Orbiter’s instruments, which unexpectedly arrived weeks before the comet, looked at the upper Martian atmosphere, and afterward, a very bright color of UV light appeared which was linked to magnesium. Other colors showed the presence of iron.

Dr. Schneider, the lead scientist for the Maven instrument that made those observations said, “These are not what you expect for atmospheric ingredients, but they are what you expect from comet dust.”

Another Maven instrument detected Sodium, nickel, manganese, potassium, zinc and chromium.

Magnesium is usually 10% by weight of comet dust, Dr. Schneider said, leading to an estimate of thousands of kilograms of dust showering on Mars in about an hour. If that material arrived in pieces the size of sand grains, “a meteor shower could be made,” he added.

A radar instrument fitted on the ESA’s Mars Express orbiter observed an additional layer of electrons in the atmosphere — the result of falling dust particles burning up. Donald A. Gurnett, a physics professor at the University of Iowa who is the lead investigator for the instrument said, “This is extremely unusual.”

Moreover, the researchers revealed that within just hours most of the changes in the Martian atmosphere dissipated.

The European Space Agency and NASA’s orbiters were positioned on the opposite side of Mars when the peak of comet dust arrived. Traveling at 126,000 miles per hour, even a small particle could have damaged or destroyed a spacecraft.

The observatory in Australia that first identified the comet in January 2013 and named it as ‘Comet Siding Spring’, which is evolved from the Oort Cloud — a ball of icy debris about a light-year away. Though, each year, numerous cloud comets fly through the inner solar system, by the time they are seen, there is not enough time to send a spacecraft to study them.

But the comets that have been studied up close, such as Halley’s Comet, are closer in and return to the inner solar system every few years or decades.

With Siding Spring and its close encounter with Mars — less than half the distance between Earth and the moon — the spacecraft was already there to conduct the first close-up observations of an Oort Cloud comet. The NASA’s Mars Reconnaissance Orbiter took the photographs that revealed — comet’s nucleus was smaller than the expected 1.2 miles, and it was rotating once every 8 hours.

In the meantime, the European Space Agency is concluding preparations for a high-risk, high-reward attempt to place a small lander on a comet next week.

Its Rosetta spacecraft arrived at Comet 67P/Churyumov-Gerasimenko in August. On Wednesday, a lander named Philae with a weight of 220-pound is going to detach from Rosetta for a period of seven-hours to the surface of the 2.5-mile-wide comet, tugged down by its gravitational pull.

Once Philae is on its way, it has no way to adjust its trajectory, and the mission managers admit the attempt could go skewed if the lander ends up on a boulder or in a hole. Andrea Accomazzo, the flight director said, “We have to be a bit lucky.”

Filed Under: Tech & Science Tagged With: 2013, Chromium, Churyumov-Gerasimenko, Comet 67P, comet dust, Curiosity, Donald A. Gurnett, Dr. Schneider, esa, European Space Agency, manganese, Mars, nasa, nickel, Oort Cloud, Opportunity, potassium, Rosetta spacecraft, Sodium, zinc

Comet 67P Stinks -ESA Reported

October 27, 2014 By Rebecca McGhee Leave a Comment

Smell of comet

Do you really wish to know what a comet smell like? In simple words, it smells like a rotten egg.

Recently, researchers of European Space Agency revealed that comet generally contain a horrible smell.

Experts analyzed the Rosetta spacecraft comet 679 Churyumov-Gerasimenko. The study unveils that the comet releases a strong gas vapors with the help of “out gassing”. It usually transforms the comet’s ice into a water vapor through sunlight.

Scientists utilized special instruments on board of the European Spacecraft Rosetta. The spacecraft is all set to fall a Lander on the icy exterior of the comet.

The ESA website reported that the comet smell is so unique that no one wishes to smell it.

Moreover, Kathrin Altwegg who is the project leader notified that this smell would increase when the spacecraft moves closer to the sun. The sun will compel the spacecraft to produce more gas.

Scientists were really eager to find out the configuration of comet as these chemical fumes would probably disclose some significant details related to the origin of the solar system.

The gaseous arrangement of Comet 67P is same as the composition of other comets of Oort cloud.

This smell of toxic gases can only be stopped with a dangerous mixture of gases such as ammonia, hydrogen cyanide, formaldehyde and hydrogen sulfide.

Filed Under: Tech & Science Tagged With: Chemical fumes, comet, Comet 67P, comet layer, esa, European Spacecraft Rosetta, Kathrin Altwegg, Lander, Smell

ESA Lastly Announced Landing Date of Philae on Comet 67P

September 27, 2014 By Rebecca McGhee Leave a Comment

philae

According to the official reports revealed, the European Space Agency’s Philae Rosetta spaceship (Philae Lander) lastly put to land on Nov. 12th on Comet 67P/Churyumov-Gerasimenko.

The actual surface of the comet is quite oddly shaped. Philae would set up the space lab to study the entire composition and topography of the Comet.

As per the official reports, this seems to be the first landing on a comet by spaceship that would seems to be a major milestone moment for the entire mankind’s history.

Rosetta spaceship plunges through profound space for ten years till it lastly stalled with comet 67P last month. As Rosetta will float in Comet’s orbit, Philae will get the soil samples in order to study the temperature of the comet. According to the officials, Comet 67P/Churyumov-Gerasimenko consists of an odd shape, which is more of like a rubber duck. Though, it’s whizzing via space in the direction of Sun with the speed of 10.4 miles/sec.

On Nov. 12th, Philae will going to land at Site J at around 0835 GMT. However, it will appear from Rosetta at a distance of 22.5kms from comet and would land after several hours. The officials are expecting the delay of around 28mins & 20secs till the landing is verified on Earth. On the other hand, if Rosetta would use the backup Site C, then it will probably land around 1304 GMT from a distance of 12.5kms. Though, the lander will possibly hit the ground 4 hours later and the verification of the landing scenario would arrive at Earth around 1730 GMT.

Certainly, Rosetta spaceship is prepared with the installments of eleven cameras in order to get the clear picture of Comet 67P’s notable land. It has also been reported that, after the landing of Philae, it would join itself to the comet by boring 18-inches into the surface.

The wreckage that come out while drilling would be chemically analyzed too. The researchers are actually hoping that 67P will probably resolve some of the mysteries like the early formation of the solar system.

Filed Under: Tech & Science Tagged With: Comet 67P, Comet 67P/C-G, Comet 67P/Churyumov–Gerasimenko, comet landing, esa, milestone, Philae, Philae Lander, Rosetta, spaceship, the European Space Agency

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