Showing posts with label NASA. Show all posts
Showing posts with label NASA. Show all posts

Monday, May 22, 2017

NASA Releases Stunning 'Action Cam' Footage of Astronauts Working 250 Miles Above Earth

Fascinating Recording Released on YouTube

Unbelievable action cam recording from spacewalk on the International SpaceStation has been revealed by NASA, providing a close look at what occurred when astronauts tend to step outside the orbiting craft. Initially it could be easy to overlook that they are 250 miles above the surface, as the astronauts tend to go about their tasks, though a quick change of perception revealing the curve of Earth faraway comes as a shuddering reminder.

Thomas Pesquet of ESA together with Shane Kimbrough of NASA had prepared the pressurized Mating Adapet-3 for a second International Docking Adapter that would permit profitable crew vehicles to berth. The fascinating recording which had been released on YouTube recently had been captured by Pesquet on March 24 in advance of the robotic move ofthe Pressurized Mating Adapter 3, on March 26.

The space agency had explained that the cables as well as the electrical connections had been disconnected by Pesquet and Kimbrough enabling PMA-3 to later on to move from the port side of the Tranquillity module to the space facing area of the Harmony module. The video had portrayed the task from the perception of the astronauts as they carried out the practical mission on the external of the ISS.

Peggy Whitson – Record Breaking Eighth Spacewalk

Besides it also provides a spectacular view of the Earth as perceived from distant above. The spacewalk had been directed to prep the PMA-3 for the docking adapter that would be provided by a SpaceX Dragon freight craft. Moreover, the team also installed a new computer relay box on the starboard zero truss, bringing in the innovative software to the adapter.

According to NASA, they had greased the latching end effector on the Special Purpose Dexterous Manipulator `extension’ for the Canadarm2 robotic arm, examined a radiator valve presumed to be leaking some amounts of ammonia, replaced cameras on the Japanese section of the outpost.It has been the second spacewalk of Pesquet while the fifth one for Kimbrough.

At the time of the interview on NASA TV the week of the spacewalk it had been admitted by Kimbrough that going outside was a gee-whiz moment for him. Days after the spacewalk had featured in the `action cam’ recording, Kimbrough had returned to the outside along with astronaut Peggy Whitson for her record breaking eighth spacewalk which is said to be the most performed ever by a woman.

Lost an Important Piece of Shielding

However the excursion had not been without any accidents. The spacewalking astronauts had lost an important piece of shielding at around 10.30 a.m. which was required for the International Space Station, compelling them to carry out an unplanned patch. The cloth bundle had floated away halfway through the spacewalk.

The lost fabric shield is comparatively huge weighing 18 pounds and when it tends to be folded measure around 5 feet by 2 feet and is around 2 inches thick. Spacewalkers had lost things earlier comprising of an entire tool kit in 2008. However the getaway items tend to be usually small, like bolts. Whitson had broken another record on achieving the longest time spent in space by an American. She had extended her trip by three months.

Saturday, March 11, 2017

There Could Be Lava Tubes on the Moon, Large Enough for Whole Cities

Moon Lava Tube
Lava Tubes Beneath Lunar Surface – Bigger and More Stable

A research of networks of lava tubes that tend to wind beneath the lunar surface proposes that they could have been bigger and more stable than presumed earlier. The researchers sculpting the tunnels which are the remains of volcanic activity in the moon’s early stages are of the belief that they could possibly be up to around three miles wide thus raising the hope for subterranean bases.

The lava tubes which have been located in Iceland as well as Hawaii seem to be huge tunnels that have been carved out of the rock by the flowing lava. Geologists are of the opinion that they have been developed from streams of magma that had run dry, leaving channels through the solid rock.

Scientists are of the belief that the same structures are probably found beneath the lunar surface depending on small gravitational changes as well as images of cave openings gathered from lunar orbiters. If the lava tubes are found and seem to be stable they could offer shelter for a lasting lunar base.

Overcome Problems – Potential Hazards

This would help in overcoming the problems pertaining to potential hazards confronted by a base on the surface inclusive of the risk of meteorites as well as the increased solar radiation owing to the absence of protective atmosphere.

A group from Purdue University in Indiana had utilised computer demonstrating procedures in analysing how huge these tunnels could possibly grow. The circumstances on Earth would mean that the tubes tend to be limited to 30 metres across though the gravitational evidence recommends that on the moon they could be much larger. Utilising evaluations of rock density from the samples of moon rock, it was presumed that the width of the tubes would probably be thrice wider than their height.

The effects indicated that the stability is governed by the width of the tube, thickness of the roof together with the physical stress on the rock. In a paper published in journal Icarus, researchers had explained that if adequately deep, the lunar condition would probably generate fissures kilometres wide.

Lunar Base – Twice Commercial Base

It was informed that the theoretical maximum size of a lunar lava tube was based on various factors though with sufficient burial depth – 500 m together with an initial lithostatic stress state, the results portrayed that the lava tubes up to 3 miles – 5 km wide would be capable of staying structurally stable.

The estimates surpassed the earlier sizes that had been provided by the group during the 2015 conference which had recommended that tubes of 0.6 miles in diameter could be adequately steady to house permanent bases below the surface. Nasa scientists had earlier in the year calculated that there could be a possibility of returning to the surface of the moon in the next five to seven years at a total cost of about $10 billion.Spaceflight experts have debated in a series of papers, on the cost of building a lunar base which tend to be much less than anticipated and that there could be a substantial commercial value there.

They had mentioned that a lunar base can be twice a commercial mining base to enable the resources of the moon to be exploited. According to evidence, the moon could be a rich source of water ice, together with rare metals as well as a rare isotope of helium.

Wednesday, February 15, 2017

UFO Spotted on Runway of NASA Jet Propulsion Labs in Google Earth Satellite Images

UFO
The UFO or Celestial object is not only a childish fantasy, rather people of different age, nationality or of diverse cultural background; are very much eager to know the truth about these unique object/s, which paved the way for some of the most interesting ballads or folklores in different societies. There are lots of stories, especially in the science fiction segment, which is based on UFO or Celestial object and this is not a modern day issue, it can be found in our earlier literature also, including epics.

The massive development in the science and technology has opened up various opportunities and the space science or technology is not an exception. It is worth mentioning that different countries, where the space research activities are being performed in a serious manner, especially in the USA, Russia, Japan, China, India etc. are specifically involved in the study of these UFOs and Cosmic soul. In this context, it can be noted that NASA, the US Space agency is the front runner in these kinds of studies and researches and very recently some news were coming in about their confirmation regarding the visits of celestial objects in our planet, which is really a new of billion dollars.

Recent Outcry of "Flying Saucer"

A few days back, someone uploaded a video in the youtube, showing a round-shaped object is lying on the runway on the Mesa road, which is near the space agency (NASA)'s Jet Propulsion Laboratory (JPL), raised the eyebrows of millions of users, who watched the said video. It is according to the insider of the NASA; this very lab is situated in California, US and having the honor of making the first Earth-orbiting scientific satellite of the USA.
UFO_1


In addition to this; it is the headquarter for the upcoming robotic missions, which will study the solar system, planets, other galaxies, asteroids etc. to get some valuable information that may strengthen the study. It was also the place, where the maiden interplanetary spacecraft was made and sent to space, which was a historic moment in the history of space science. The much-hyped video shows a clipping of the picture, taken with the help of Google Earth, which appears as a "UFO" is parked inside the research facility of NASA, which have got all UFO hunters into a conundrum.

The Truth

After lots of noises and claims, counterclaims; Nasa revealed the truth of the picture, shown in the video clipping i.e. uploaded in the youtube, is not a UFO or any kinds of celestial object, on the contrary, it is not at all a supernatural thing, this was just the antenna reflector that was lying there upside down.

Before this revelation, people were quite curious about the circular object and rumors were there in the air that NASA is playing the game or their capturing of UFO has already been done and only the confirmation is yet to come. But the entire episode has come to an end with the confirmation by the UFO hoax-busters that is nothing but an antenna, which is using for capturing different views of the space.