Categoriearchief: Astronomy

The branch of science that deals with celestial objects, space and the physical universe as a whole

Lunar Archaeology

In 1969, the third man to walk on the moon, astronaut Charles “Pete” Conrad Jr., also became the first lunar archaeologist. As part of the Apollo 12 crew, he examined an earlier robotic lander, Surveyor 3, and retrieved its TV camera, aluminum tubing and other hardware, giving NASA scientists back on Earth the evidence they needed to study how human-made materials fared in the lunar environment.

Lunar-archaeology

Conrad examines the unmanned Surveyor 3 spacecraft, which landed on the moon on April 19, 1967. He retrieved its TV camera, aluminum tubing and other hardware. Credit: NASA, Johnson Space Center

Like all astronauts who have visited the moon, Conrad also left behind artifacts of his own. Some were symbolic, such as the U.S. flag. Others were prosaic: cameras, dirty laundry and bags of human waste. NASA’s list of Apollo-related items left on the surface is 18 single-spaced pages. It ranges from geology hammers to earplug wrappers, seismographs to sleep hammocks. Even golf balls belonging to Alan Shepard, who managed some practice during Apollo 14, remain on the moon, though they appear to have escaped the notice of the list makers. All told, six manned landings, two manned orbital missions, over a dozen robotic landings and more than a dozen more crash sites offer signs of a multinational human presence on and around the moon. Each item left behind may seem like a small scrap for a man, but together they offer a giant look at mankind.

“These sites are time capsules,” says Beth O’Leary, an anthropologist at New Mexico State University in Las Cruces. They host valuable artifacts for archaeologists and anthropologists who want to study humanity’s growing space heritage. Failed instruments at lunar landing sites, for example, might reveal the engineering or management missteps behind them, the same way the sinking of a ship on earth could tell us something about its commanders or passengers. Archaeologists might even want to study the DNA of microbes in the astronauts’ waste for clues to the diet and health of these early pioneers. “People’s idea is that archaeologists are interested in 1,000 years ago, 100 years ago,” O’Leary says, “but here we’re talking about the modern past.”

The effort may not sound urgent. The moon has almost no air, water or geological activity to corrode or otherwise damage artifacts, but a new generation of missions are headed there and they boost the risk that someone or something will interfere with existing sites. The recent robotic landing by the Chinese National Space Agency, the first controlled landing since the 1976 Luna 24 mission, signals a renewal of sophisticated lunar exploration. This time around, more countries will be involved, as will commercial entities. Private organizations are in hot pursuit of the Google Lunar X Prize, which offers cash rewards for achieving technical milestones, one of which is landing near the Apollo sites.

O’Leary’s interest goes back to 1999, when a graduate student in a seminar she was teaching asked if American preservation laws applied to artifacts left on the moon. O’Leary didn’t know, so she looked into the question, soon discovering that the Outer Space Treaty of 1967 prevents nations from making sovereignty claims in space. It does not address, however, the preservation of property that nations have left behind. O’Leary persuaded NASA to fund her research into the topic, and published what she calls the Lunar Legacy Project. She and colleagues created an inventory of the Apollo 11 landing site and began lobbying for its formal protection. By then, private companies such as Lockheed Martin were already discussing taking samples from other lunar sites for study. The hardware itself still belonged to the governments that put it there (the United States and Russia, the primary heir of the Soviet space program), but that would be little consolation if a modern mission ran over the first human footprints on the moon, for example, or moved an object without documenting its original location.

O’Leary helped lobby California and New Mexico, states with strong ties to the space program, to list the Apollo 11 objects in their state historic registers. The move offered symbolic protection and attracted attention to the problem but didn’t do anything to solve it. There was, and still is, nothing to stop new visitors from interfering with objects already in space.  Vandalism probably isn’t the biggest concern, but even unintentional interference is worrisome. Landing near existing sites could damage the sites, in the case of a crash or from the spray of lunar dust and rocket exhaust. “My concern would be that they miss,” says Roger Launius, senior curator of space history at the Smithsonian National Air and Space Museum. “If they miss by just a little bit, they could end up landing on top of the site.” And well-meaning archaeologists, though guided by the cultural legacy laws and professional codes wherever they work, do destroy part of what they study as a matter of routine.

Lunar-archaeology-sample

Lunar Regolith 70050 sample collected from the moon by the Apollo 17 mission

O’Leary would like the moon sites preserved as long as possible so that future archaeologists, perhaps with more sophisticated instruments and less damaging techniques, can examine them for clues about the human story of the landings. Scientists and engineers also have an interest in preserving the sites: They want to study how equipment left on the moon ages, like they did with the samples Conrad took from Surveyor 3. They also want to resolve questions about moon rocks that couldn’t be answered the first time around, including the size of a patch of orange volcanic glass discovered by geologist Harrison Schmitt during the Apollo 17 mission.

sample3_lg

Apollo 17 troctolite 76535. This sample has a mass of 156 grams and is up to 5 centimeters across. NASA/Johnson Space Center photograph S73-19456.

Abstract of article by Lucas Laursen on Smithsonian.com

Paper Moon

Paul Ramirez Jonas
Paper Moon (I Create as I Speak)
, 2007

Paul Ramirez Jonas

Consisting of sheets of paper tiled to represent an image of the moon, upon closer inspection, the design is made up of text that reads, “I Create as I Speak.” A single sheet is removed from the wall and rests on a lectern, with a microphone and a portable amplifier, inviting the viewer to interact with the work. The text plays with words; “I Create as I Speak” translates to ABRACADABRA in the ancient Aramaic language.

Toril Johannessen (with Vilde Salhus Røed)
Large and partly spectacular solar eclipse (08.01.08), seen from a hill between our houses, 2008

Toril Johannessen

Toril Johannessen

Dark Energy

Maarten Vanden Eynde
Gravitational Bending, 2010

Maarten Vanden Eynde gravitational bending

Even weirder than dark matter—the invisible stuff constituting most of the mass of the universe—is dark energy, a mysterious force pushing the universe apart at an ever-faster rate. Dark energy has been around for most of the history of the cosmos. “Nine billion years ago, dark energy was already wielding its repulsive influence on the universe,” explains Johns Hopkins University astrophysicist Adam Riess. But the repulsion didn’t exceed the force of gravity until 5 billion years ago, when cosmic expansion kicked into high gear and began accelerating.

A pioneering space mission called the Wilkinson Microwave Anisotropy Probe (WMAP) delivered the first accurate account of the overall makeup of the universe. The answer is decidedly strange. Dark energy makes up 73 percent of the universe, dark matter another 23 percent. Atomic matter—everything around us and everything astronomers have ever seen—accounts for just 4  percent.

dark energy

Comparing images from the Hubble Space Telescope’s high-end cameras with the WMAP heat signature map of the early universe, Riess and his colleagues retraced the growth history of the universe with unprecedented accuracy and depth. “It’s as if you mark the height of a child against a doorframe to measure growth spurts,” Riess says. For reasons as yet unknown, the antigravitational effects of dark energy are greater now than they were in the distant past. One theory, supported by the Hubble data, is that empty space is impregnated with residual energy from the Big Bang. As space expands, so does dark energy, while matter is spread out, weakening the inward pull of gravity.

Based on a text by Alex Stone

Chu Yun
Constellation, 2006

Chu Yun

Galaxy made out of LED lights from various devices.

The God Particle

Alexandra Mir
The Dream and the Promise, 2009

Alexandra Mir

‘Infinite space within an infinite nothingness. Undefinable spirit within unlimited thought. Icons and insatiable quests. Human curiosity has a need for a context within which to exist. Religion was science as science is now religion. The justification of our lust and thrust for the infinite, away from our sensory paradise, comparable to the search for the deepest recesses of our minds, are both ways of seeking the answers to creation, purpose and demise. Religion, as a system of control, has come close to its great rival throughout history – the laws of physics that govern our universe. ‘When will miracles cease?’ – The modes of technology that we produce are ingenious to the children of earth but woefully inadequate adaptations of our unlimited imagination. ‘Why are we here?’ – Spiritual answers are equally unsatisfactory compared to the power of such simple questions. The answer may lie in convergence. Technology may have to wait for the power of the human brain to fully develop its (super)natural abilities. Will the technologies that are then produced be miraculous in that they may not require material substance to work but a faith, a belief in laws of physics so subtle than matter itself cannot withstand their logic? Will they be based in technology so discreet that it will be indistinguishable from the very fabric of the universe and all that is created within it? When we look at science and religion, are we looking at the same technology at different levels of evolution? Is humankind always to be polarised and thus paralysed?’ – Mark Baker –

The Large Hedron Collider

god particle

Photo: Maximilien Brice, CERN

If you were to dig a hole 300 feet straight down from the center of the charming French village of Crozet, you’d pop into a setting that calls to mind the subterranean lair of one of those James Bond villains. A garishly lit tunnel ten feet in diameter curves away into the distance, interrupted every few miles by lofty chambers crammed with heavy steel structures, cables, pipes, wires, magnets, tubes, shafts, catwalks, and enigmatic gizmos.

This technological netherworld is one very big scientific instrument, specifically, a particle accelerator-an atomic peashooter more powerful than any ever built. It’s called the Large Hadron Collider, and its purpose is simple but ambitious: to crack the code of the physical world; to figure out what the universe is made of; in other words, to get to the very bottom of things.

There’s one puzzle piece in particular that physicists hope to pick out of the debris from the LHC’s high-energy collisions. Some call it the God particle.

The preferred name for the God particle among physicists is the Higgs boson, or the Higgs particle, or simply the Higgs, in honor of the University of Edinburgh physicist Peter Higgs, who proposed its existence more than 40 years ago. Most physicists believe that there must be a Higgs field that pervades all space; the Higgs particle would be the carrier of the field and would interact with other particles, sort of the way a Jedi knight in Star Wars is the carrier of the “force.” The Higgs is a crucial part of the standard model of particle physics—but no one’s ever found it. – Joel Achenbach –

Mo(NU)mentum

Maarten Vanden Eynde
Mon(NU)mentum, 2008 AD
(450 x 60 cm)

Maarten Vanden Eynde Monumentum

Maarten Vanden Eynde Monumentum

Time is a philosophical dimension, a basic substance which we breath in and out constantly. Just like space it is always there. Time experience however seems to be working on many different levels in an ever changing and more personalized speed (sometimes a minute can last forever and your life can fly by in a fraction). Time is not static, it is always on the move. The impossibility to stop time is mirrored by the impossibility to live in the present. ‘Now’ is an elusive point between the past and the future. Like the gardener on his way to Ispahaan, the present is on his way to an unavoidable destiny: the past. There is no escape. When you read THIS word, it became history already. The future is catching up instantly. What is the force that powers the engine of time? Is the present being pulled towards the future?

The Universal Law of Gravitation has several important features. First, it is an inverse square law, meaning that the strength of the force between two massive objects decreases in proportion to the square of the distance between them as they move farther apart. Second, the direction in which the force acts is always along the line (or vector) connecting the two gravitating objects.
In 1687 Sir Isaac Newton first published his Philosophiae Naturalis Principia Mathematica (Mathematical Principles of Natural Philosophy) which was a radical treatment of mechanics, establishing the concepts which were to dominate physics for the next two hundred years. Among the book’s most important new concepts was Newton’s Universal Law of Gravitation. Newton managed to take Kepler’s Laws governing the motion of the planets and Galileo’s ideas about kinematics and projectile motion and synthesize them into a law which governed both motion on earth and motion in the heavens. This was an achievement of enormous importance for physics; Newton’s discoveries meant that the universe was a rational place in which the same principles of nature applied to all objects.
Could it also work for Time?

Between two objects, let’s say A and B, there is a point where the gravitation of both objects is working with equal force (L1 point, named after Lagrange ). This point is balancing between the two attracting masses. If it is slightly bending towards A or B is will be attracted more by either one of them. It can only move from it’s frozen position, without loosing it’s equal balance, if A and B change mass simultaneously. The mass A is loosing, B has to gain. If time would be a linear experience, and A would be the past and B the future, than the point (C) hanging in the middle would be the present.
Presuming the past is getting longer and longer (or bigger and bigger), in order for C to be equally drawn to both A and B, it needs to be moving towards the future. The past is getting bigger and the future is getting smaller. And on top of that the speed of this process seems to be accelerating. With the population growth as exemplary model and driving fuel, evolution takes place at an unprecedented speed. New inventions and discoveries changing the world beyond recognition are constantly coming closer after each other. Just like the birth of matter during the big bang, time was created at the same moment and moves equally with the expanding universe; faster and faster to it’s final destiny.

The installation ‘Mo(NU)mentum’ is made up of several layers of history, creating a massive pillar. The drill core is like a sample of time, taken from the earth in the future to understand how the world evolved. Starting with a massive block of stone (in which the different geological layers are visible) the drill core contains samples of wood, copper, metal, bricks, concrete, asphalt, tar and plastic. The layers are getting thinner and thinner the closer they get to the present = the plastic layer. So far the materials created a foundation for the next, but the plastic layer is so thin and vulnerable that it is impossible to continue from there. It is a final moment in present evolution.

Maarten Vanden Eynde Monumentum

Mo(NU)mentum is a monument for the future, visualizing the impossibility to continue the current evolution. It is a permanent memory and trace of Generali Groups Executive Forum on Time: Business Opportunity and Strategic Timing. The best Champagne was served in plastic Champagne glasses. The empty glasses were collected and melted on top of the installation, thereby physically contributing the last layer.

Europe2012

Maarten Vanden Eynde

Maarten Vanden Eynde new European Flag 2012

The present project Europe2008: In Varietate Concordia aims to stimulate international discussion about the future policy of the EU and ultimately to press for a fundamental change of course. Gradually even the stars on the flag should vanish, leaving us eventually with a universal clear blue flag, the flag of Planet Earth. Is a conceptual ideology desirable and more importantly: is it a realistic possibility?

Join the forum on Europe Day, the 9th of May on www.europeday.info

Europe2010

Maarten Vanden Eynde

Maarten Vanden Eynde new European Flag 2010

Since January 1st, 2007, the Union consists of 27 member states! Is further expansion desirable when the old 25 member states cannot successfully bring about an unequivocal policy? Does Europe need borders and if so, where do you draw the line? Croatia? Bosnia Herzegovina? Albania? Or Turkey? Georgia? Azerbeidzjan? And what about Russia? Or Canada? Israel?

Join the forum on Europe Day, the 9th of May on www.europeday.info

Europe2008

Maarten Vanden Eynde

Maarten Vanden Eynde new European Flag 2008

We have drifted too far away from the Utopian ideas that were essential to the foundation of Europe. Equality concerning basic resources and means should create freedom and stability that will make war in the future unnecessary. ‘To unify Europe is to make peace’, said the spiritual father of the European idea, Jean Monnet, in 1950.This is an ideology similar to that of the League of Nations and the United Nations and which should apply to the entire world population. And it is precisely this deviation, this betrayal of the ideology, which causes the present suspicion and ultimate rejection of the European Union. Is Europe a new country with new borders, or is it a concept for freedom and equality?

Join the forum on Europe Day, the 9th of May on www.europeday.info

Europe2006

Maarten Vanden Eynde

Maarten Vanden Eynde new European Flag 2006

In 2006 there were still only 15 countries represented on the flag. The ten new member states of the European Union, which joined in 2004, have not been treated equally due to fear of a tidal wave of economic refugees. A special backdoor provision was created to allow each member state to implement its own restrictions (until 2011) against one or more countries at will. This inequality and discrimination is at odds with the founding spirit of the European Union. Should free movement of people, goods, services and capital be implemented universally and immediately upon accession to membership of the EU or is an adjustment period a better strategy?

Join the forum on Europe Day, the 9th of May on www.europeday.info

The History of Tomorrow

– a short story-

by Maarten Vanden Eynde, 2006/2007
in collaboration with Marjolijn Dijkman

Maarten Vanden Eynde The History of Tomorrow

A billion stars twinkled in the universe, irregularly like diamonds. I woke up in a sweat and tried to christalize where I was. The heavy window screens were open but I could only feel a pitch-black sky. I rolled over to the side and found my glasses. There, up there on the left, it should be there! Was I still sleeping? I blinked my eyes a couple of times, but was disappointed again. It was gone, it was really gone…

The loss of gravitation first came to general notice on the 15th of June 2008, during the Olympics in Beijing, China. On that day 27 world records were broken. Lees verder

EUTOPIA

Europe is facing it’s most difficult challenge: how to create a united Europe? After the referenda on the new European Constitutional Law and the following disappointment about the French and Dutch NO, Europe is further away from unification than ever. But as a result inertia about Europa was replaced by genuine interest. What does it mean to be European? What do we represent? How much personal identity do we want to hand over to become a unity? The project is about the European Union as a whole and wants to raise questions about Europe in the past, the present and the future. Is Europe a new country with new borders or a concept for freedom and equality?

Maarten Vanden Eynde

Europe2006, 2006
Spun-poly silkscreen (155 gr/m2 polyester cloth), 100 x 150 cm

europe

On the 9th of May, the official Europe Day, the new flag was presented throughout the whole European Union.

Participating Cultural institutions include:

The Vienna Künstlerhaus and State of Sabotage in Austria, The Latvian National Museum of Art and Gallery Noass in Latvia, Lokaal 01 in Belgium, Pantheon Gallery in Cyprus, The DESTE Foundation for Contemporary Art and Booze Cooperativa in Greece, Stanica Cultural Centre in Slovakia, SCCA/Center for Contemporary Arts-Ljubljana in Slovenia, Galleria Rubin, Viafarini, PAN/Pallazo della Arti Napoli and ILOYOLI Lab in Italy, Casino Luxembourg – Forum d’art contemporain, Galerie Frank Gerlitzki espace ApART and ON25 societé civile in Luxembourg, Galeria Bielska BWA and Wyspa Institute of Art in Poland, CCB/Centro Cultural de Belem in Portugal, Kulturcenter HUSET and Charlottenborg Exhibition Hall in Denmark, Sally Stuudio and Tartu Kunstmuuseum in Estland, The Korjaamo culture factory in Finland, FAUX MOUVEMENT – centre d’art contemporain in France, Kunstverein KISS, Temporäres Museum, Untergröningen in Germany, The Contemporary Art Centre (CAC) and Vartai Gallery in Lithuania, St James Cavalier, Centre for Creativity in Malta, Artpool in Hongary, Four, The Irish Museum of Modern Art and Pallas Studios in Ireland, Tranzit Social Platform in Czech Republic, The Tapper-Popermajer Art Gallery in Sweden, La Mekanica in Spain, Hidde van Seggelen Contemporay Art and Ben Janssens Oriental Art in London UK, Smart Project Space, Kunstruimte Wagemans, Expodium, Lokaal 01, Sign, Peninsula, STROOM Den Haag and CBK Rotterdam in The Netherlands….

‘I left the ten last newcomers out, not because I don’t think they aren’t part of the EU, but because they are still not accepted as full members by the old EU countries. People coming from one of these countries don’t have the same freedom of movement through Europe as the rest of the Europeans. Although this is one of the basic rights as a European citizen. Europe is a concept for freedom, not a new country with new borders.

I think Europe should present itself as a variety of countries not as a unity. It is not a homogeneous circle of stars and it will never be one, so I put every star back on it’s original position, as the capital of the different countries. Like this an ‘abstract’ sky full of stars appears. The borders are opening…’

Maarten Vanden Eynde

Time Travel – Shaping the Future

by Neil Johnson

The idea of travelling forward into the future or back into the past has always fascinated science fiction writers. The ‘grandfather paradox’ is the argument many people use to suggest that time travel is impossible. What if you went back in time and prevented your grandfather from meeting your grandmother so that your mother was never born? Then you would never have been born… and so on. Until very recently such arguments led most scientists to believe that time travel could never exist outside science fiction. But amazingly, some interpretations of the weirdness of the quantum world now suggest that time travel is possible – at least in theory.

Gravity and black holes
Einstein’s theory of relativity brought space and time together in a single, four-dimensional arrangement that he called spacetime. We know that we can travel forwards, backwards and sideways in space, so why not forwards and backwards in time?

Four dimensions are difficult to imagine, so physicists usually suggest you think of spacetime as a rubber sheet stretched out flat. If there are no large masses around, the sheet stays flat, and so any object placed on it will move around in straight lines. But a large mass, such as the Sun, makes a dip in the sheet because it actually warps spacetime. Now any other object with smaller mass, like our Earth, moving about in spacetime rolls into the dip as it comes past the Sun. It appears ‘attracted’ to the large mass. This effect of warping spacetime is what gives rise to gravity.
The Universe is full of heavy objects exerting gravitational effects and the net result is that spacetime is not flat at all but curved. Everything, including light, has to follow curved paths in spacetime. We know Einstein was right about this because astronomers can sometimes see distant stars that ought to be masked by nearer objects such as the Sun. Instead of travelling in straight lines and hence being blocked, the light from the stars bends round the obstruction.

When a star reaches the end of its life it may collapse inwards under the influence of its own gravity to such an extent that all its matter becomes concentrated into an extremely dense object a fraction of its original size. This is a black hole. Black holes have such a huge gravitational pull that nothing can escape from them, not even light. We cannot see them but we have good evidence that they exist. We can see stars behaving in ways which suggest that they are being pulled about by a nearby invisible object with enormous mass.
What does a black hole do to spacetime? Relativity predicts that at the centre of a black hole is an infinitely dense point, called a singularity, within which all the normal laws of physics no longer apply. Time, space, matter and energy no longer have any well-defined meaning. Einstein’s equations show that such a singularity doesn’t just make a dip in the imaginary rubber sheet of spacetime, it makes a tunnel that goes right through and momentarily opens out on the other side.
Where is ’the other side’? It could be somewhere else in spacetime, either in the future or in the past, or it could even be in another Universe! If you could take a spaceship through such a tunnel, or wormhole, you would have discovered the secret of time travel. This is of course impossible with today’s technology. But in the future, who knows?

Mini wormholes
Einstein’s equations describe a spacetime that is perfectly smooth, like the rubber sheet. His theory of relativity only deals with the physics of what happens on big scales. It cannot deal with what happens at the centre of a black hole, or what happened during the moment of the Big Bang at the birth of the Universe when spacetime itself was infinitesimally small. That takes us back into the world of quantum physics.
If you could look at spacetime with a magnifying glass so powerful that it reached down to the quantum scale, you would not see the smooth, continuous sheet of Einstein’s spacetime. Just as a foam rubber ball looks smooth from a distance but rough and ragged close up. In this picture of spacetime it is quite likely that tiny holes could open up, entrances to little tunnels between now and other times, or between here and other universes. Another option for future time travellers would be somehow to harness these tiny wormholes and expand them.

Many worlds, many futures?
To return to the question that has puzzled thinkers since Newton’s day, is the future preordained? Or are there an infinite number of futures? One way of looking at the quantum world suggests that not only are there an infinite number of futures, but they are realised in an infinite number of universes.
Photons and electrons sometimes behave as waves and sometimes as particles, but never both at the same time. So far, the argument for interference between one universe and another applies only to events occurring at the quantum level.
But the idea of parallel universes provides a possible resolution to the ‘grandfather paradox’ that might otherwise cause problems for time travellers. If we travel back in time and change history, we launch ourselves into a new future in a parallel universe – but we have no effect on the present one from which we started out.

Scientists of the future may well pursue a new form of futuristic technology based on quantum effects. Such applications could include quantum teleportation, by which a quantum particle can be teleported from one point in space to another; and quantum computation, where calculations can be carried out which would take many years on a conventional computer. Although we now know how to measure time very accurately, have we come any nearer to answering the basic question ‘What is time?’.

Neil Johnson is a Physics lecturer at Oxford University where he heads his own research group.

Extraterrestrial Art

On the 2nd of June 2003 an artpiece was send to another planet for the first time in human history. The painting, by Damien Hirst, consists of 16 multi-coloured spots on a 5cm by 5cm aluminium plate which was bolted to the lander, which was send to Mars . It had to cope with the cold of Mars, where temperatures drop to minus 70C, and pre-launch sterilisation which heats the painting to 155C.
Every part was designed to be useful. The aluminium plate was used to calibrate Beagle 2’s X-ray, the colours will check the camera, and minerals in the pigments would correct the sensor measuring the soil’s iron content. Beagle 2, named after the famous exploration-ship of Darwin, was launched on board the European Space Agency Mars Express craft from Kazakhstan.
Before Mars Express enters the orbit of Mars, Beagle 2 will be jettisoned and bounce to the planet’s surface, cushioned by inflatable bags. It will analyse sub-surface soil and rocks and take samples of the atmosphere to find out if life ever existed there.
Prof Pillinger, who commisioned Hirst said: “This collaboration is not about displaying art in space but about finding out if there is life on Mars.”
Just a few inches across and resembling a child’s watercolour paint box, the trademark Hirst spot painting was bolted to the British Beagle 2 space probe after a preview at London’s White Cube gallery.

beagle2

The pop group Blur also has a Beagle 2 connection. They wrote the call sign which the probe would send to mission control when it landed on Mars. (listen to the song on BBC website)

Beagle 2 was last seen heading for the red planet after separating from its European Space Agency mothership Mars Express on December 19 2003. Part of a mission estimated to cost $85 million, the probe was supposed to land on Mars a few days later on Christmas Day and search for signs of life, but vanished without trace…

SETI, the Search for Extraterrestrial Intelligence, is an exploratory science that seeks evidence of life in the universe by looking for some signature of its technology. (http://www.seti.org)

Gravitation of Time

The Universal Law of Gravitation has several important features. First, it is an inverse square law, meaning that the strength of the force between two massive objects decreases in proportion to the square of the distance between them as they move farther apart. Second, the direction in which the force acts is always along the line (or vector) connecting the two gravitating objects.
In 1687 Sir Isaac Newton first published his Philosophiae Naturalis Principia Mathematica (Mathematical Principles of Natural Philosophy) which was a radical treatment of mechanics, establishing the concepts which were to dominate physics for the next two hundred years. Among the book’s most important new concepts was Newton’s Universal Law of Gravitation. Newton managed to take Kepler’s Laws governing the motion of the planets and Galileo’s ideas about kinematics and projectile motion and synthesize them into a law which governed both motion on earth and motion in the heavens. This was an achievement of enormous importance for physics; Newton’s discoveries meant that the universe was a rational place in which the same principles of nature applied to all objects.

Maarten Vanden Eynde

‘Between two objects, let’s say A and B, there is a point where the gravitation of both objects is working with equal force (L1 point, named after Lagrange). This point is balancing between the two attracting masses. If it is slightly bending towards A or B is will be attracted more by either one of them. It can only move from it’s frozen position, without loosing it’s equal balance, if A and B change mass simultaneously. The mass A is loosing, B has to gain.

Time is always moving. When you read this word, it became history already. The future is catching up instantly. The present is an untouchable point always on the move.
If time would be a linear experience, and A would be the past and B the future, than the point hanging in the middle would be the present. The past is getting longer and longer (or bigger and bigger) so in order for this point to be equally drawn to both A and B, it needs to be moving towards the future. The past is getting bigger and the future is getting smaller. And on top of that the speed of this process is accelerating. Just like the birth of matter during the big bang, time was created at the same time and moves equally with the expanding universe; faster and faster to it’s final destiny. Will this be the end or a new beginning?’

time

The Lagrangian points (also Lagrange point, L-point, or libration point), are the five positions in interplanetary space where a small object affected only by gravity can theoretically be stationary relative to two larger objects (such as a satellite with respect to the Earth and Moon). They are analogous to geosynchronous orbits in that they allow an object to be in a “fixed” position in space rather than an orbit in which its relative position changes continuously.

Lagrangian points

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