IBEX Finds No Bow ‘Shock’ Outside our Solar System

For many years, scientists thought, when the entire solar system through interstellar space, which moves in front of the circle of the sun, like jet breaking the sound barrier, a sonic boom, most front-end by a layer of bow type shock wave banner head array. Unexpectedly the NASA IBEX No. detection satellites latest discovery turned out to be the moving speed of the solar circle in interstellar space is probably too slow, not form a bow wave, instead it would be better to say - more like amplitude and force more gentle many to wake (wake).
The chair relevant research researcher said, many observations in the past we have seen stellar travels, most front-end has a bow-type shock wave, the team's latest discovery, however, is placed under the entire interaction seems, did not reach the speed of the sun the formation of the bow shock wave threshold required threshold, sculptors, such as boats glide in the water in bow position will wake, but it seems more vividly depicted in the scene in front of the sun circle!

Help researchers find more solar system near the strength of the interplanetary magnetic field data from the IBEX return information. IBEX data show, the sun circle is actually about 83,000 kilometers per hour moving through the local interstellar cloud, more than originally estimated hour slower, about 11,000 km are insufficient because such speed and force called the "bow shock" So, in other words, the bow wave disappeared.

On the other hand, the magnetic pressure of the interstellar medium have some effect. Whether spacecraft the IBEX data or the early explorers, both observations need more speed to the strength of the magnetic field of the interstellar medium near term, in order to produce a bow shock wave. Under the combination of the two factors, the conclusion is: the bow wave in the extremely unlikely form.

Conclusion consistent with the results of this observation, and previous ESA CLUSTER plan obtained that the bow-type shock wave should be "quite superficial" (see related news http://sci.esa.int/science-e/www/object/index . cfm? fobjectid = 49637). IBEX research team in addition to analysis calculated according to the observations of the return, and these data combined with the model and numerical simulation to infer that draw the necessary conditions for a bow-type shock wave which, currently, two independent teams of ball type model analysis results coincide with each other.

These new findings make us bring significantly improved understanding of the circle of the sun? The IBEX staff now What is the significance of that latest information for the solar system circle the sun still too early to say, as long as several decades, scientists have been a the various assumptions scene with bow-type shock wave conditions, including research, must new data sets into study redo the job. So far, we already know how cosmic rays surrounds the solar system, the solar system, how to move forward in the interstellar universe, and how the interaction between human space travel are crucial knowledge message.

The asteroid into the atmosphere

October 6 last year, astronomers found a 4 meters long and weighing about 83 tons of asteroid 2008 TC3, the calculation results show that, 2008TC3 chance of colliding with Earth as much as 100%. At this time, arrived at the asteroid from the Earth's atmosphere is only 19 hours before. However, in the asteroid entered the atmosphere after the combustion exhausted, residues falling in the Nubian Desert in northern Sudan, about 30 kilometers outside, the scattered wreckage of a number of asteroids and weighing about 3.95 kilograms. 

 This is the first time scientists are tracking the course of asteroids colliding with Earth. Scientists believe that in 1908 and swept the Tunguska forest in Siberia large asteroid celestial bodies in general, may be every 200 years the Earth will be hit first. Once the asteroid entered Earth's atmosphere, colliding with Earth after the explosion or disintegration occurs. Such as an asteroid exploded in a city or directly over the collision will lead to a devastating disaster. 

 Astronomers pointed out that although the number of science fiction movies of asteroids colliding with Earth would, in fact, the possibility of asteroids colliding with Earth exist. For the existence of threatening to destroy the asteroid is very necessary, but such a threatening asteroid, or even more complex than the movie. 

 Best to avoid such a disaster is to change the asteroid crashed into Earth orbit. 

 Space Shuttle Discovery's safe return to Earth 

 ● The United States space shuttle Discovery, landed safely on the 28th the Kennedy Space Center in Florida, the successful completion of the delivery to the International Space Station components and solar panels bracket task. 

 Discovery Time in the Central Plains at 3:14 on the 29th to land because of bad weather than the scheduled time for more than an hour late. 

 Discovery's trip is the first space shuttle flight this year. Time of the next space shuttle flight is tentatively scheduled to present on May 12. 

 Obama video greetings from the International Space Station astronauts connection 

 ● Barack Obama President of the United States, on the 24th and the International Space Station astronauts on the 10 video connections, greeting each other with questions. In the call, the International Space Station Commander Mike? Fink told Obama, a space station orbit the earth every 90 minutes around every 24 hours to see the sunrise 16. 

 Sandra female astronauts? Magnus, in November last year, started work at the space station, Barack Obama in the video signal, to see her because of weight loss and long hair in the air being released into the atmosphere. Obama asked: "long hair in the space station trouble? Want to cut point? Popular short hair." Magnus replied: "honestly, I cut hair look good, so long insisted on staying . " 

 This is the first time since Barack Obama became president talk with astronauts. Obama connection with the day with the astronauts, as well as primary and secondary school students from Washington, their own question: "What astronauts eat?" "Can play in space electric?" "There are few stars in space?" "What in order to become an astronaut? "... ... the International Space Station astronauts original Permanent 3. 

 On the 15th of this month, seven space shuttle Discovery astronauts traveling from the United States John F. Kennedy Space Center, Florida, launched into the international space station on the 17th. Discovery is scheduled to leave on the 25th International Space Station, on the 27th to return to the Kennedy Space Center. 

 Microsoft plans to cooperate with NASA to create a virtual telescope 

 ● Microsoft announced the establishment of and cooperation between NASA, Microsoft World Telescope (WorldWide Telescope) project, will be NASA's Mars Exploration United States and other celestial bodies of a large number of photos. Coming through the system, the public will be able to access from worldwidetelescope.org Mars, the Moon and Other Celestial Bodies, the universe of high-definition images and scientific information. 

 NASA officials said, which is in line with the new NASA Administrative open and transparent policy. NASA provided to the Microsoft for more than 100 TB of data, including the August 2005 launch of the Mars Exploration Orbiter (MRO), lunar exploration Orbiter (LRO), such as photographs. It will help stimulate the general enthusiasm for astronomical exploration.

Hubble Space Telescope archive images found abandoned by the new exoplanet

Photographs from 1998 found in extrasolar planets 

 NEW YORK News April 3, according to foreign media reports, astronomers have recently re-examine the  Hubble telescope the past 15 years shooting a large number of images and data files, and from the discovery of a previously overlooked new extrasolar planets. 

 HR8799 To further explore the surrounding stars in a star running more planets, astronomers have carefully studied the  Hubble telescope in 15 years a large number of images collected by data files. Astronomers using a shading method, the stars have been observed to mask the bright light, so that may be found running around some of the star exoplanet light of the weak. It is through this method, astronomers finally taken in 1998 found an image of this extrasolar planets. This technology can be applied from Hubble telescope is similar to the more than 200 data sets can also be used by ground-based telescopes to obtain a large number of image data. 

 University of Toronto astronomer David -is one discoverer. David said that Now we have proved the feasibility of this approach. We can be applied to all observational studies and researches files, can be used to discover whether these images in a hidden planet. Hubble data files can best embody the scientific efficiency. It is easy to understand, and its structure is very suitable for information search scientists. According to the U.S. computer scientists Rensselaer Polytechnic Peter - Fox introduced so far  Hubble data files have been used for more than 6 times. In fact, experimental or other scientific tools have had a mass of information, but most are hard-copy format or hard to read vs Reserve, but not after the general analysis. 

 Hubble data file for David's research work provides the meta-data and query functions. David explained that You can use different parameters, different goals and different wavelengths name query, query is easy. But more importantly, the data quality is very high, they are processed and calibrated, it is also a high-quality search results. Proven this technology in the next may be more widely used. David said launched in the near future," James - Webb "telescope, will certainly use this technology as the search for extrasolar planets, one of the strategy. We need a way to diminish the stars shine. James  - Webb telescope will be launched in 2013, and dedicated to the search for extrasolar planets Kepler Space Telescope was previously launched in early March. 

 David further explained that the Department of extrasolar planets is a difficult observation of celestial bodies, which is located in our solar system around a star outside the run. Although, according to astronomers speculated that in reality there are many extrasolar planets to be discovered, but so far, astronomers identified only 300 extrasolar planets, which some of the planet's environment, with the formation of life on Earth's environment very similar. So far, astronomers are red through the space telescope to collect data to understand the atmosphere of extrasolar planets. However, as soon  Spitzer infrared telescope will all run out of the refrigerant, which would severely limit the capacity of its observation. Astronomers said that from the Earth to an extrasolar planets to see the atmosphere, it is necessary for a large number of calories eruption, and the atmosphere necessary for the existence of no wind or very little wind. In addition, when this Department of extrasolar planets from the star behind it through, the cover star, the planet is a clear need to just quiet night, so that astronomers can accurately measure the thermal emission of its minor changes. 

 As of January 2009, scientists around the world in a total of 285 planetary systems discovered 335 extrasolar planets. In the near future, they seem to discover another planet  Previously found to have the atmosphere of extrasolar planets are orbiting telescope  Spitzer found. Need to add that, in the current discovery of extrasolar planets, most of them are Jupiter-like gaseous giant planets like. These planets are usually very close distance from the star, so the surface temperature is usually over in a few hundred degrees Celsius.

400 million U.S. dollars a space school speech class and explain

This year is the 40th anniversary of the human landing on the moon, as the Apollo lunar exploration plan to the designers of cars, U.S. scientists, Dr. von Stockhausen Dyson to encourage students to: "everything must have curiosity and imagination, learning to use his right brain that are flowing creativity and imagination, think of someone unexpected, and then left to the implementation of the use, step-by-step. This is done to determine a person's event, the key difference. " 

 By the "corporation of Taiwan Association of Space and Science Education" (TASSE) with the United States in Houston sponsored by the Association for Space Education "HASSE Space School 2009 lecture tour," in March for the continuation of the popular lecture, will be 4 this weekend / 11 (Taichung), 4 / 12 (Taipei) again brought the value of a class of 400 million U.S. dollars, so that you dream of a round! Free to invite all kinds of high school to university together groups of students and parents. 

 March 1 this year, organized by "Inspire me! Imagination! Curiosity!" Seminars attracted 160 students and parents present, unprecedented that the bottom of my heart everyone has fun space dream! Re-debut of HASSE Space  lecture tour of schools, will also bring a range of exciting courses. Will be in space by the Houston Association of Science Education and Executive Director Mr. Liu Zhuoyu, the United States Mr. John Dankowski Space Center and Space Association teachers, and students all share the U.S. NASA Space Center, the latest development information, the U.S. life scientists and astronauts wisdom, motivate and inspire more young people. 

 NASA Space Center, Mr. John Dankowski, will be at the scene by the gas gun and insulated bricks for a "space shuttle thermal tiles" experiment, will enable us to know how the space shuttle in a state of high-speed friction to penetrate the atmosphere, and not because of overheating explosion! 

 Fantasies such as astronauts in the weightless space shuttle-like floating in from top to bottom, is the hearts of many people looking forward to life, but you do not know is that life is sometimes in a weightless state! "Weightless flight," the curriculum, physical science teachers will be way, the experimental demonstration of weightlessness, so you do not need to enter the space shuttle, you can see a rare state of weightlessness! 

 NASA moon landing 40th anniversary, the United States Space Science Education Association of Houston, will take you into the earth from the space where the most recent! The value of a class of 400 million U.S. dollars, so that you embrace the dream of space to satisfy the imagination and curiosity!

The Earth gravity field and ocean circulation satellite put into trial operation

European Space Agency announced on the 20th, the Earth gravity field and satellite ocean circulation (Goce) since launch on the 17th after the satellite control system is operating well at 0:00 on the 20th from the start, the satellite carried out a mode switch, all scientific instruments into the trial operation stage . 

     European Airlines in a press release issued that day said, Goce launched its portable satellite tracking device that is put into operation, the role of this instrument are to receive the Global Navigation Satellite System signals, and its high accuracy, except exert navigation, but also records and satellite orbit adjust. At present, the European aircraft located the Italian Earth Observation Center has received a tracker back to the first signal. In the coming weeks, Goce will complete a series of difficult tasks, such as startup electric ion drive mode and adjust, such as satellite orbit. 

     Goce satellite is launched in Europe in recent years, the Air Board's most advanced satellite to detect one, it weighed about 1 ton, equipped with a number of sets of high sensitivity detection equipment, access to the data will help scientists gain a better understanding of the internal structure of the Earth, on human study of marine and climate change will also be helpful.

Discovery astronauts finish 2nd walk JEM GPS antenna installation

The United States space shuttle "Discovery" at the International Space Station today Astronaut (International Space Station) outside the completion of the second spacewalk for the Japanese Experiment Module "I hope its" installation of GPS (Global Positioning System) antenna, a space station the construction of the final stages of completion. 

     GMT 16:51, Space Station orbiting 354 kilometers above the South Pacific Department of the Earth's orbit, the astronauts Wansen history (Steve Swanson) and Aqaba (Joseph Acaba) begin spacewalk. 

     Astronaut itinerary in accordance with our established, the implementation of the Discovery space walk 3 times in the 2nd operation, the entire process lasted 6 hours and 30 minutes. 

     Space Station yesterday, the successful launch airfoil huge solar panels, for the Earth's orbit on the space lab to do a good job the first time, generating pre-loaded with homework. History and Aqaba Wansen Yan P6 today released two of the batteries for the next mission in June to replace the battery at the time of preparation work. 

     Space Station as well as two of the Japanese Experiment Module "I hope its" global positioning system antenna installation. 

     Global Positioning System-guided Japan's cargo spacecraft will help HTV. The cargo spacecraft will be opened later this year. 

     This spacecraft can hope that its water supply, food and scientific equipment and, if necessary, may also be required for other parts of the supply station. 

     Discovery in Florida on the 15th launched, space station construction mission to implement the final phase of the job. Lasted for more than 10 years of space station construction projects in 16 countries from its birth and up to 100 billion U.S. dollars to spend.

Astronomical feat! Live asteroid hit the Earth

Astronomers detected the first time in the course of an asteroid hit the Earth, but also from its follow-up period is still space to bring it, the last and the collection and analysis of meteorites. This was published in "Nature" the study of scientific journals, not only to allow scientists to know more about the F-type asteroids, and perhaps inspire them to consider how to avoid future occurrence of the tragedy of the Earth into a planet. 

 This 14 meters wide, 83-tonne, about the bus-sized asteroid is arrived at in October last year, 19 hours before the Earth was discovered, astronomers also have an unprecedented opportunity for observation and the final route of projectile scene for the fireball. Similar to the asteroid-sized objects, it is difficult to detect in space, there is 3-4 per year into the Earth. 

 I am astonished that there is some remnants of the asteroid had not completely destroyed during re-entry, but landed in the northern part of Sudan, about 29 kilometers stretch of the Nubian Desert. By December, astronomers mobilized civil 45 University students and teachers line up in the desert meteorite fragments of a search and finally found 280 meteorites weighing from 1. 283 grams to five grams, ranging from a total of about four. 45 kilograms, the whole process is like a needle in a haystack. 

 California, "Institute of search space intelligence" (SETI) astronomers that the probability of follow-up to the Asteroids, "is only one chance of a lifetime." Involved in monitoring this asteroid Belfast Northern Ireland Queen's University professor fee, points out that scientists are now able to predict not only where the asteroid will be rammed, but also early warning, to obtain relevant information immediately. 

 The United States Arizona viewing an amateur, and October 6 last year, reported the coordinates of an asteroid discovered in Cambridge, Massachusetts to the Minor Planet Center. This is just one of hundreds of routine records, but the computer system has the magic to refuse this extra information. Gaspar, director of the center told the "natural": "I see this information and to manually make a track, it is obvious that crashed into the Earth." 

 Asteroids of this size and brightness of the Earth should not pose a risk, but Gaspar safety procedures in accordance with the standards of practice, direct-dial NASA (NASA) hotline. He also reminded the Jet Propulsion Laboratory rationale of Sanchez, who immediately calculate the asteroid orbit. Computer program shows that the probability of an asteroid hit the Earth up to hundred percent, will hit the atmosphere within 13 hours, forces one to two tonnes of TNT equivalent TNT. 

 It was named 2008 TC3, was later renamed . I Tower (Arabic meaning for the station on the 6th)." It is classified as F-type asteroids are very rare types of meteorites. Only one. 3% F is a class of asteroids, formed in 45 billion years ago, with the Earth and other planets about the solar system at the same time. Since then most of the time it at between Mars and Jupiter around the sun outside the asteroid belt running it into a collision of another track, and narrow the gap between the earth, eventually assisted by gravity at the Earth into the Earth onto the road. 

 Stay in the Nubian Desert Station "on the 6th station" and the town of Al-fat people, are said to see the return of "fireball similar to the Rocket." KLM in Africa over the driver, also 2008 TC3 to 12,000 meters per second speed collision the atmosphere, reported that there is to see a bright flash on the ground.

35 million U.S. dollars the United States and rich visit space

5 the world's first "space tourists" ‧ American millionaire Charles Simonyi is scheduled to begin on the 26th his second trip to space, is expected to become the world's first space travel "repeat." Russian Space Management department previously announced, subject to restrictions on the carrying capacity of the international space station, after the cancellation of this year Russia intends to "space tourist" project. This means that temporary Shimoni as possible to the Russian space tourist last at their own expense. 

 The first repeat space travel 

 Shimoni is scheduled on the 26th, accompanied by two professional astronauts from the Baikonur launch site in Kazakhstan launched to the International Space Station. He is expected to remain at the space station less than two weeks, April 7 to take "Union" manned spacecraft to return to the Earth. 

 If the successful completion of the trip, Simonyi will become the world's first space of the two "space tourists." Shimoni finish in April 2007 the first two-week trip to outer space, becoming the world's first self-financed five "space tourists." Shimoni trip that took 25 million U.S. dollars. Media reported that the cost of this trip will be more than 35 million U.S. dollars. 

 Shimoni again for reasons of space travel, the Associated Press quoted him 23 in a telephone interview to answer the report, a number of astronauts in space Shimoni Ending first told him after the tour, once again, "Flying" and the feel with the first harvest is radically different from that space to do his initiation Tour "repeat" of the idea. 

 Finally the tour at their own expense or 

 Russian Federation Space Agency officials said earlier this year, the number of the International Space Station astronauts Permanent probably by the end of May to 6 people, more than doubled in the past. Because of the space station and personnel carriers bearing stress increased after the Russian side intends to cancel this year at their own expense, "space tourists" project. 

 Heard the news, Shimoni decided to seize the "last chance." "Either now (emphasis on space travel), or no (opportunity)." He said. 

 However, even though there are still opportunities for the third space, Shimoni do not intend to have another try. "I am no longer young," the 60-year-old millionaire said that the addition of his new wife has agreed to no longer "three space travel." 

 To help achieve scientific experiments 

 Shimoni put on the first trip as a "sequel." He said that two out of space travel the same purpose, namely "to support space research, universal civil aerospace business, to introduce offspring exciting science and engineering (the outcome)." 

 The Hungarian-American millionaire has a doctorate in computer science and flight license, a former Microsoft software development division, to participate in research and development of software such as Word and Excel. 

 The space trip, the Shimoni intended to assist the completion of a number of medical and technical aspects of radiation experiments, will also use the "Windows on Earth" software for the Earth to take photographs for people to watch.