Monday, April 02, 2007

ESA Mars 500 Mission



Preparing for a long-duration human mission to Mars

Starting in spring next year, a crew of six will be sent on a 500 day simulated mission to Mars.

During the simulated Mars mission, known as Mars500, the crew will remain in a special isolation facility in Russia. To investigate the psychological and medical aspects of a long-duration mission, such as to Mars, ESA is looking for experiment proposals for research to be carried out during their stay.

Locked in the facility in Moscow, the crew will be put through all kinds of scenarios as if they really were travelling to the Red Planet – including a launch, an outward journey of up to 250 days, arrival at Mars and, after an excursion to the surface, they will face the long journey home.
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The crew will have tasks similar to those they would have on a real space mission. They will have to cope with simulated emergencies; they may even have real emergencies or illnesses. Communication delays of as much as 20 minutes each way will not make life any easier.

Instead of having a spacecraft as their home, the crew will live in a series of metal tanks. Using narrow connecting passages, they can move between a medical area, a research area, a crew compartment and a kitchen – an area of only 200m2. There is even a special tank representing the Mars descent vehicle for simulation of a stay on the Martian surface.

Why is ESA participating in this study?

To look at the psychology of such a mission, knowing that you are enclosed for 500 days. As soon as there is a problem, the crew knows that they are on their own, and they have to solve it themselves. The only help available from the outside is through communications which may take up to 40 minutes.

At the start of their mission the crew will be supplied with all the food they will have to live off for the duration of the study. They have to keep track of their consumables amongst themselves. This limited food supply could lead to additional tensions amongst the crew.

To look at the psychological effects of the situation on your mental well-being, and on your capabilities of performing certain tasks, even tasks critical to the mission. In a real mission, for example, whether you are able to land a vehicle on the surface of Mars, and are you able to do the science once you are there? How will group relations evolve? What are the potential dangers we could encounter? What kind of countermeasures can we invent that can prevent this? And to learn about what types of personality we should select for a real mission.

Almost as important, to learn more about the medical procedures. How do you define a good medical environment so that you can treat diseases? What are the medicines that you want to take with you on the journey? There will be one person amongst the crew with real medical training. But of course that person can also fall ill. So you have to have all kinds of back-up scenarios.

A full simulation should alert us to any potential risks and better prepare us for the real thing.

The proposal could also cover research in the Concordia Station Credits: IPEV
The Concordia Station is a scientific base built in Antarctica by the French Polar Institute (IPEV) and the Italian Antarctic Programme (PNRA) .


Read more ESA prepares for a human mission to Mars 02 April 2007.

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Mars Spots From Astroprofs Page
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Saturday, March 10, 2007

ESA invites proposals


ESA's Aurora Space Exploration Programme invites proposals for the Next Exploration Science and Technology (NEXT) mission.

The Aurora Programme is composed of two main elements: a Core Programme, which aims to establish the ability of Europe to participate as a recognised partner in future international space exploration endeavours, and an Exploration Robotic Missions component with a first mission, ExoMars, which is now being implemented for launch in 2013.

As an intermediate step, after ExoMars and before the international context will allow the initiation of a Mars Sample Return (MSR) mission, the Executive considers proposing to the next Ministerial Council an 'ExoMars class' mission.

Envisaged for launch in the period 2015-2018, the technological goal of NEXT is to demonstrate key enabling capabilities, such as descent and precision landing, as needed for a future Mars Sample Return mission.


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To this end the Core Programme has initiated an MSR Phase A2 System Study, building on the results of two previous Phase A1 studies. In this frame Entry, Descent and Soft/Precision Landing on the one hand, and Autonomous Rendezvous and Docking/Capture on the other, were identified as key elements of interest for Europe.

Such a mission would demonstrate in particular key MSR technologies and achieve a step change in the European capabilities over and above present possible contributions to the MSR mission, whilst also providing an opportunity for scientific investigations. Ideas that would include aspects relevant to the human exploration scenario are welcome.

NEXT exploration mission - call for ideas
Proposals and suggestions are sought from Industry, Technical Centres and the Scientific Community for mission concepts that would combine, in the spirit of exploration, technology development with first class science.

Ideas should be submitted electronically to:
explorationcall@esa.int not later than 13 April 2007.
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Solar Sail Mission to an Asteroid by Centauri Dreams
Solar Power at Play - Observing the Spin-Up of an Asteroid ESO
Sensor Being Developed To Check For Life On Mars from Science Daily
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Saturday, February 24, 2007

Rosetta over Mars


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Rosetta Swing-by 250 km over Martian surface
The Rosetta swing-by of Mars is the second of four gravity assist manoeuvres that are required to place Rosetta on course for its final destination.


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Timeline: Mars swingby at 36 000 km per hour
The closest approach of the swing-by will take place at 01:54 UT, 25 February 2007, when the spacecraft will pass 250 km above the surface of Mars.

Rosetta's NAVCAM captured the black & white image of Mars at 19:32 CET from a distance of 237 477 km.

In the upper left it is possible to identify the Elysium Mons region centred at approximately 147° East. Mars' equator runs horizontally approximately across the middle of the image.

Just northeast of the 'double finger' feature, visible in the lower half of the disk, is Aeolis Mensae mountain, located at 140° East.

The small double feature visible in the upper-right quadrant is the Cerberus Fossae ridge.

Spectacular view approaching Mars Animations from ESA
Beautiful new images of Mars - OSIRIS UPDATE 25/02/07
Stunning view of Rosetta skimming past Mars - 25/02/07
Rosetta successfully swings-by Mars – next target: Earth
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A gravitational slingshot is the use of the gravity of a planet to alter the path and speed of an interplanetary spacecraft. It is a commonly used manoeuvre for visiting the outer planets, which would otherwise be prohibitively expensive, if not impossible, to reach with current technologies. It is also known as a "gravity assist".

A slingshot manoeuvre around a planet changes a spacecraft's velocity relative to the Sun, even though it preserves the spacecraft's speed relative to the planet.


Consider a spacecraft on a trajectory that will take it close to a planet.


As the spacecraft approaches the planet, the planet's gravity will pull on the spacecraft, speeding it up. After passing the planet, the gravity will continue pulling on the spacecraft, slowing it down. The net effect on the speed is zero, although the direction may have changed in the process. (Image Cassini trajectory)
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New Engine Helps Satellites Blast Off With Less Fuel
The Georgia Tech engine operates with an efficient ion propulsion system. Xenon (a noble gas) atoms are injected into the discharge chamber. The atoms are ionized, (electrons are stripped from their outer shell), which forms xenon ions.

The light electrons are constrained by the magnetic field while the heavy ions are accelerated out into space by an electric field, propelling the satellite to high speeds.
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Wednesday, January 10, 2007

ESA - Earth to Mars


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Consultations were hosted by the European Space Agency (ESA) and the British National Space Centre (BNSC) in Edinburgh 8/9th January 2007.

Representatives from the UK and other European political, industrial and scientific sectors, together with members of the general public, the various stakeholder groups in Europe with colleagues from across the world, debated the future long-term exploration of the solar system and beyond.

The UK has a vibrant space science and industrial community that already makes a significant contribution to our knowledge economy. Its experience in developing innovative space technology will continue to ensure the UK plays a leading role in both European and global space exploration in the future.

MoonLITE Credit: SSTL
MoonLITE equipped with missile-shaped penetrators carrying seismometers to investigate the lunar interior and a telecommunications capability to demonstrate high data rate telecoms at the Moon.



Moonraker Credit: SSTL
MoonRaker, a small propulsive Lander to provide in-situ geological dating.
These mission options exemplify the UK's expertise in small satellites, robotics and miniaturised instruments and MoonLITE's telecoms capability could provide a vital contribution to NASA's ambition of establishing a Moon base by 2020.

The UK is already the second largest European contributor to ESA's Aurora programme of planetary exploration and is currently involved in developing an ambitious Mars Rover project that will fly onboard Europe's ExoMars mission to the Red Planet slated for launch in 2013.


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ESA's Aurora Mission

From the dawn of humankind the need to explore has driven expansion across our planet. Today this expansion continues towards other planets in the solar system by means of robotic spacecraft - virtual explorers. But will human expansion continue? In the public consciousness this is only a matter of time. By 2025 an international human mission to Mars may be a reality. It may use the Moon as a way station and to prepare for the great leap. The feasibility of such a mission is being assessed, however, the necessary technology and capability still need to be developed.

Over the next 20 years robotic missions will prepare for human missions, by collecting as much scientific and engineering data as possible, without human scientists in situ. These robotic missions will contribute and demonstrate the technologies needed to put humans on Mars and return them safely to our planet.

Some of the key technologies for a human mission are also very important to the search for life in situ on the red planet and on other solar systems, planets and moons. Soft and precision landing, drilling and sample return, will not just be demonstrated for the sake of technology. These missions will carry sophisticated exobiology payloads and provide answers to some key questions on the origin of life in the solar system and possible causes for its extinction.

A challenging and complex return mission to collect a sample on Mars might also involve our first attempt at interplanetary exploitation. Instead of lugging propellant for the return trip all the way from Earth, the lander systems could include technology that would generate rocket fuel from Martian resources.

Ultimately, though, Mars exploration plans should result in an even greater adventure - a human mission. Astronauts are vastly more capable than even the smartest robot, but they are also vastly more difficult and expensive to transport. Unlike robots, they eat and breath; and if their environment is too uncomfortable, they can become tetchy and depressed. For a human Mars expedition to be possible, new technologies will have to be developed and tested: not only soft-landing methods and in-situ fuel processing, but life-support engineering for a long haul far from home and perhaps entirely new rocket systems, possibly based on new types of propulsion, which will reduce the time spent coasting through space.

By 2025 A human Mars mission, perhaps with the Moon as a first target or even as a way station to the Red Planet, would represent the culmination of the programme's efforts. And just incidentally, it would also guarantee that there was life on Mars: human life.

Read more European workshop on space exploration from ESA
Europe forges long-term strategy for Space Exploration by PPARC
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