Showing posts with label European Space Agency ESA. Show all posts
Showing posts with label European Space Agency ESA. Show all posts

Friday, January 15, 2016

British astronaut Major Tim Peake to go for a six and half hour spacewalk out of the ISS


#spacewalk #astronauts #timpeake British astronaut 43-year-old Major Tim Peake is going for a six hour spacewalk out the International Space Station - it will be the first ever spacewalk by a Britisher. His task is to repair a faulty power unit and, along with him would be Tim Kopra. They will face a race against the clock to conduct the repair in brief moments of darkness as the space station hurtles around the Earth.
This has been reported in dailymail.co.uk dated 15 January 2016.
Major Peake is an astronaut of the European Space Agency and Britain's first official astronaut on the ISS. He and Flight Engineer Kopra will have just 31 minute windows to install a new sequential shunt unit in total darkness outside the ISS.
Once outside the ISS, they will be hurtling at 17,227mph above the surface of the Earth. It takes 93 minutes for the ISS to orbit Earth once, therefore, the astronauts would get to experience 16 sunrises and 16 sunsets every day. The spacewalk, in scientific terms, is known as Extravehicular Activities (EVAs) and, Major Peake has revealed that among the tools that they will take with them outside ISS to help install the new power unit is a modified toothbrush to help clean the connections.
Major Peake and Flight Engineer Kopra would be spending nearly six and a half hours outside the ISS during the EVA. Even though the repair of the power unit is expected to take around 15 minutes if all goes smoothly, they will spend the rest of the time laying new power cables and doing other work outside the ISS. All the necessary tools are either clipped onto their spacesuit’s ‘Mini Work-Station’ or stowed inside tool bags in the order that they would be needed.

(Image courtesy wikimediacommons.org

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Wednesday, September 23, 2015

Mars Orbiter Mission Mangalyaan completes one year on Mars


Mars Orbiter Mission ‘Mangalyaan’ of the Indian Space Research Organization (ISRO) has helped put India on the elite global space club and it is celebrating the first anniversary of Mars Orbit Insertion by releasing an atlas of images taken by the Mars Color Camera (MCC) and some results from the Mars Methane Sensor.
This has been reported in zeenews.india.com dated 24 September 2015.
Mangalyaan had been launched on 5 November 2013 by ISRO and was successfully inserted into the Red Planet orbit on 24 September 2014, after a 298-day transit to Mars. That made ISRO become the fourth space agency to reach Mars, after the Soviet space program, NASA, and the European Space Agency.
Moreover, this successful Mars mission meant that India became the first Asian nation to reach Mars orbit, and the first country in the world to do so in its first attempt.
The life of Mangalyaan had, initially, been estimated to be six months. But, from present indications, it could last for many more years since it still has 35-Kg of fuel left.
(Image courtesy wikimediacommons.org)

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Monday, December 8, 2014

UK to revive interest in the Moon while others focus on Mars


After the landing of US astronauts on the Moon, the interest in this heavenly body has apparently been replaced with shift of focus to the Red Planet Mars. However, UK plans to renew interest in the Moon and give it a new lease of life through its Lunar Mission One.
Scientists have set out their goals of a proposed UK-led mission to the Moon and its main objective appears to be to survey the Lunar South pole in order to learn more about the geology of the Moon and see if a human base can be set up in the future.
Among its others tasks would be to drill 100 meters below the surface apart from assessing the feasibility of setting up observatories on the far side of the Moon. Till now, samples of lunar rocks have been taken from three meters below the surface of the Moon by Apollo 17 Astronauts Gene Cernan and Harrison Schmitt in 1972. In contrast, Lunar mission One aims to drill up to 100 meters below the surface of a site which is already thought to have material thrown up by a giant impact billions of years ago from several kilometers below the surface.
Backers of this ambitious project expect to raise the bulk of the £500m needed for the project from public donations and, in return, the donors will be able to send messages, pictures and even hair samples to the Moon where it would be buried under the lunar surface.
In the opinion of Prof Ian Crawford, who is one of Lunar Mission One's principle scientific advisers, the mission has a serious scientific purpose to complete. In spite of having over 50 expeditions to the Moon including six landings by Apollo astronauts there is still much to learn.
The European Space Agency ESA had plans for a lunar lander but it has subsequently been scrapped and the objectives of Lunar Mission One are quite similar.

Tuesday, December 2, 2014

With focus on Red Planet Mars, European Space Agency to proceed with Ariane 6 rocket


European Space Agency has its eyes on the Red Planet Mars and research ministers of ESA have approved the development of a new rocket Ariane 6 for Europe in a special council meeting in Luxembourg. Ariane 6 will be a successor for the Ariane 5, which was successful but is now facing stiff competition on the price front.
In the opinion of politicians, the industry will find the new vehicle cheaper to construct and to operate.
In the meeting in Luxembourg, they also agreed to the funding for the space station and a rover to go to Mars with the ExoMars rover planned to be sent to Mars in 2018 - its mission: to search for signs of past or present life. The ESA nations agreed to contribute 5.924bn euros to cater to the number of programs over the next few years.
The decision was the result of hard bargaining as Europe's two big space powers, France and Germany, came together to push Ariane 6 forward. France always intended to put up most of the money, but it needed German support financially and programmatically.
Incidentally, the Ariane 5 has been in operation since the mid-1990s and has come to dominate the market for putting up big commercial satellites but obsolescence is catching up and it is now coming under threat from competitor services that are offering lower prices. If this continues, the position of Ariane 5 would erode in the latter half of this decade.
Therefore there is a need to go in for another version that would involve modern day technologies and Ariane 6 could fulfill that role. This vehicle would employ more modern methods of production and a streamlined assembly to try to reduce unit costs. In addition, since its modular design can be tailored to a wide range of satellite and mission types, it should prove economical in the long run due to several applications.