Blogarchiv

Sonntag, 11. November 2012 - 11:33 Uhr

Astronomie - Tauriden-Feuerball über New Mexico - 9-11-2012

 

4 Sekunden eines Tauriden-Feuerball´s  - Frams von Meteoriden-Kamera-Video:

-


3495 Views

Sonntag, 11. November 2012 - 11:09 Uhr

Raumfahrt - China´s Raumschiff Shenzhou-10 startet im Juni 2013

-

China plans to launch another manned spacecraft Shenzhou-10 in early June 2013, a lead space program official said here Saturday.
Like in the Shenzhou-9 mission, the crew might include two men astronauts and a woman, who are scheduled to enter the Tiangong-1 space lab module, Niu Hongguang, deputy commander-in-chief of China's manned space program, said on the sidelines of the 18th National Congress of the Communist Party of China.
"They will stay in space for 15 days, operating both automated and manual space dockings with the target orbiter Tiangong-1, conducting scientific experiments in the lab module and giving science lectures to spectators on the Earth," he said, adding that the selection for the crew will begin in early 2013.
In the coming mission, Shenzhou-10 will offer ferrying services of personnel and supplies for Tiangong-1, further testing the astronauts' abilities of working and living in space, as well as the functions of the lab module, he said.
"The success of this mission might enable China to construct a space lab and a space station," he said.
Tiangong-1 was sent into space in September 2011. It docked with the Shenzhou-8 unmanned spacecraft last November and the manned Shenzhou-9 in June this year, verifying China's space docking capabilities.
Shenzhou-9 carried the first Chinese woman Liu Yang, together with two male crew mates, into outer space.
"After more than a year of operation in space, Tiangong-1 is still in good condition," Niu said.
China initiated the manned space program in 1992. It successfully sent Yang Liwei, the country's first astronaut, into orbit on Shenzhou-5 spacecraft in 2003.
China plans to build its own space station in around 2020.
Quelle: xinhua

3211 Views

Sonntag, 11. November 2012 - 11:00 Uhr

Raumfahrt - China´s "X-Projekt"

-

As the next secretive flight of the U.S. Air Force's robotic X-37B mini-shuttle draws closer, analysts are keeping a close eye on China’s own potential space plane, the Shenlong.
Last year several Chinese media outlets reported a test flight of the Shenlong space plane that apparently included its airdrop  from an H-6 bomber. But the nature of the Shenlong project's testing, as well as what the robot vehicle truly represents, remains sketchy.
Several China watchers in the U.S. have taken a stab at what the Shenlong (Mandarin for "Divine Dragon) might mean, with some experts conjecturing that the craft is simply a tit-for-tat response to the unmanned X-37B space plane.
Quelle: space

3476 Views

Samstag, 10. November 2012 - 23:30 Uhr

Raumfahrt - Erfolgreicher Start von Ariane-V (V-210)

-

Ariane Flight VA210
An Ariane 5 rollout to the Spaceport’s launch zone always represents a key milestone in Arianespace’s mission preparation process, and offers the first opportunity to view the completed heavy-lift workhorse in its entirety.
Today’s transfer of the Ariane 5 for Flight VA210 was captured in pictures by the photographic team at Europe’s Spaceport, benefitting from sunny French Guiana skies.  
-
A close-up photo of Ariane 5 inside the Spaceport’s Final Assembly Building highlights the logos of Flight VA210’s two passengers: Eutelsat Communications’ EUTELSAT 21B; and Star One C3 for Star One S.A.  Accompanying the Eutelsat logo is a depiction of Africa drawn by Ghanaian student Michael Yeboah, who was a winner of last year’s DStv Eutelsat Awards – which encourage African students to embrace science and technology, along with creative thinking on applications that can support the continent’s development.
-
Team members prepare the hitch linking Ariane 5’s mobile launch table with the multi-purpose tug/tractor used for rolling out the heavy-lift vehicle to its launch zone.  The availability of two operational launch tables enables the assembly, processing and checkout of separate Ariane 5s in parallel at the Spaceport, supporting Arianespace’s sustained mission cadence.  As one Ariane 5 is completed in the Spaceport’s Final Assembly Building, another can undergo its initial build-up in the nearby Launcher Integration Building.
-
All is ready for Ariane 5’s transfer from its Final Assembly Building to the ELA-3 launch zone.  The rollout is performed with a multi-purpose Titan tug/tractor, which is powered by a 540-horsepower engine and has two different transmission modes: a traditional torque-converter transmission function, and a mode that uses a hydro-static gearbox – allowing the engine to run at maximum power while its movement is controlled with precision to the millimeter.
-
The Ariane 5 nears its final lock-down position in the Spaceport’s ELA-3 launch zone to complete today’s rollout.  Surrounding the site are large towers that provide protection against lightning strikes. Also evident in this photo are the two large above-ground flame ducts that funnel exhaust from Ariane 5's solid rocket boosters.  Behind one of them is the ELA-3’s fixed launch tower, along with an adjacent water tower – which provides a deluge for acoustic damping during engine ignition and the Ariane 5’s liftoff.
-
-
-
-Update: 10.11.2012 
 
-
Frams: LIVE-TV- arianespace/CNES
-
-
 
 
 
 
 

3456 Views

Samstag, 10. November 2012 - 09:45 Uhr

Mars-Curiosity-Chroniken - Curiosity-News Sol 92+93

-

This image was taken by Navcam: Left A (NAV_LEFT_A) onboard NASA's Mars rover Curiosity on Sol 92 (2012-11-08 12:25:44 UTC) . 
-
This image was taken by Rear Hazcam: Right A (RHAZ_RIGHT_A) onboard NASA's Mars rover Curiosity on Sol 92 (2012-11-08 12:26:46 UTC) . 
-
This image was taken by Front Hazcam: Left A (FHAZ_LEFT_A) onboard NASA's Mars rover Curiosity on Sol 92 (2012-11-08 12:26:21 UTC) . 
-
This image was taken by Mars Hand Lens Imager (MAHLI) onboard NASA's Mars rover Curiosity on Sol 93 (2012-11-09 15:11:39 UTC) . 
-
This image was taken by Mars Hand Lens Imager (MAHLI) onboard NASA's Mars rover Curiosity on Sol 93 (2012-11-09 15:18:13 UTC) . 
-
This image was taken by Mars Hand Lens Imager (MAHLI) onboard NASA's Mars rover Curiosity on Sol 93 (2012-11-09 15:18:13 UTC) . 
-
This image was taken by Navcam: Right A (NAV_RIGHT_A) onboard NASA's Mars rover Curiosity on Sol 93 (2012-11-09 15:44:58 UTC) . 
-
This image was taken by Navcam: Left A (NAV_LEFT_A) onboard NASA's Mars rover Curiosity on Sol 93 (2012-11-09 15:39:52 UTC) . 
-
This image was taken by Front Hazcam: Left A (FHAZ_LEFT_A) onboard NASA's Mars rover Curiosity on Sol 93 (2012-11-09 15:19:23 UTC) . 
-
Fotos: NASA

3411 Views

Samstag, 10. November 2012 - 09:00 Uhr

Planet Erde - Erforschung der Magnetosphäre

-

The Van Allen Probes: Honoring the Origins of Magnetospheric Science

-

Earth's magnetism has captured human attention since the first innovator noticed that a freely moving piece of magnetized iron would always align itself with Earth's poles. Throughout most of history, the origins and physics of this magnetism remained mysterious, though by the 20th century certain things had been learned by measuring the magnetic field at Earth's surface. These measurements suggested that Earth's magnetic field was consistent with that of a giant bar magnet embedded deep inside Earth. However, the magnetic field observed at the surface of our planet is constantly fluctuating. During the 1930s scientists pioneered explanations that such fluctuations were due to streams of particles from the sun striking and becoming entrapped within Earth’s magnetic field.
Truly understanding Earth's magnetic environment, however, required traveling to space. In 1958, the first US rocket -- known as Explorer 1 and led by James Van Allen at the University of Iowa -- was launched. By providing observations of a giant swath of magnetized radiation trapped around Earth, now known as the Van Allen Belts, Explorer 1 confirmed that Earth's magnetic environment, the magnetosphere, was not a simple place. We now know that it has a complex shape – compressed on the side facing the sun, but stretched out into a long tail trailing off away from the sun -- affected as much by incoming material from the sun as Earth's own intrinsic magnetism. This magnetic field constantly fluctuates in response to both internal instabilities and events on the sun. It also provides a home for a host of electrified particles spiraling through this complex system.
A Scientific American article in 1963 said: "Conditions in the magnetosphere are so diverse and so variable . . . that millions of observations by scores of satellites and rocket probes have only begun to plot the broad outlines of this extension of the Earth into space." The age of magnetospheric science had begun, and it hasn't stopped yet. In 2012, those observations continue with the latest addition to NASA's heliospheric fleet: twin satellites launched on Aug. 30, 2012, originally named the Radiation Belt Storm Probes.
On Nov. 9, NASA announced that to honor the scientist who helped launched the field, the probes will be renamed the Van Allen Probes. The renaming comes simultaneously with a standard milestone for any NASA mission: the end of commissioning. Commissioning occurs after launch when all the instruments have been turned on and tested. The end of commissioning also marks the beginning of the prime science mission.
"We are excited to be honoring James Van Allen in this way," says David Sibeck, NASA's mission scientist for the Van Allen Probes at NASA's Goddard Space Flight Center in Greenbelt, Md. "This is an important mission that carries on early magnetospheric work. In the past we have only had one spacecraft at a time looking at the radiation belts. The state-of-the-art instruments we have now are going to be able to comprehensively observe all the types of particles and waves in this part of the magnetosphere."
-
On Nov. 9, 2012, NASA renamed the Radiation Belt Storm Probes to the Van Allen Probes. The probes, shown here in an artist's rendition, will help scientists study two giant belts of radiation around Earth. Credit: NASA/Goddard Space Flight Center
-
Indeed, the preliminary data returned from the Van Allen Probes' first two months already has scientists very excited. The instruments all meet or exceed mission specifications and some papers and publications are already planned based on just the first few weeks of observations.
The probes have a planned two-year mission, each with a similar orbit that will carry the spacecraft through all parts of the radiation belts. The basic goal of the mission is to understand what causes the belts to swell and shrink in response to incoming radiation from the sun. Such changes in the belts can endanger satellites in space that orbit near the belts.
To distinguish between a host of theories developed over the years on the radiation belts, Van Allen Probe scientists have designed a suite of instruments to answer three main questions. Where do the extra energy and particles come from? Where do they disappear to, and what sends them on their way? How do these changes affect the rest of the magnetosphere? In addition to its broad range of instruments, the mission will make use of its two spacecraft to better map out the full spatial dimensions of a particular event and how it changes over time.
Scientists want to understand not only the origins of electrified particles – possibly from the solar wind constantly streaming off the sun; possibly from an area of Earth's own outer atmosphere, the ionosphere – but also what mechanisms gives the particles their extreme speed and energy.
"We know examples where a storm of incoming particles from the sun can cause the two belts to swell so much that they merge and appear to form a single belt," says Shri Kanekal, the Van Allen Probes' deputy mission scientist at Goddard. "Then there are other examples where a large storm from the sun didn't affect the belts at all, and even cases where the belts shrank. We need to figure out what causes the differences."
Of course, just like Explorer 1, any new spacecraft will provide unexpected observations that can dramatically change the models and theories about a given region of space. The magnetospheric science that James Van Allen helped initiate will surely provide additional surprises as the Van Allen Probes sweep their way through the radiation belts. 
-
Quelle: NASA

3274 Views

Donnerstag, 8. November 2012 - 17:00 Uhr

UFO-Forschung - UFO´s in der alltäglichen Werbung

-

-

-

-

-

-

Frams: Blick-Video

-

Und mehr UFO´s im Alltag findet man hier: http://www.ufo-information.de/index.php/themen/ufos-und-aliens-im-alltag


3586 Views

Donnerstag, 8. November 2012 - 15:00 Uhr

UFO-Forschung - Oktokopter im alltäglichen Einsatz

-

UFO umkreist den Wurmberger Kirchturm
Ungewöhnliches Flugobjekt: Oktokopter macht Bilder der Kirche. Pilotversuch in Wurmberg, um Schäden am Gebäude zu erkennen.
-
-
-
Wurmberg. Die Kirchengemeinde Wurmberg ist Pilotprojekt für das Evangelische Medienhaus in Stuttgart. Mit einem ferngesteuerten Fluggerät samt Kamera sollen Bauschäden an Kirchtürmen unter die Lupe genommen und so den Gemeinden eine aufwendige Bauschau mit Gerüst erspart bleiben. In Wurmberg war es jetzt soweit: Das ungewöhnliche Flugobjekt drehte seine Runden um die Kirche. „Es war ein sonores Dröhnen über dem Kirchturm der Petruskirche zu hören“, erzählt Wurmbergs evangelischer Pfarrer Andreas Kaiser. Wer zum Himmel blickte, der entdeckte eine kleine Flugdrohne, die über dem etwa 35 Meter hohen Kirchturm aus rotem Sandstein herumkreiste. In der Heckengäugemeinde war ein Oktokopter, der von acht Rotoren in der Luft bewegt wird, samt angehängtem Kamerakorb, schwenkbar nach allen Seiten, im Einsatz. Per Fernsteuerung lenkt Pilot Maurice Langehein zielgenau das Fluggerät mit dem angehängten Kamerakorb bis zum Riss unterhalb der Kirchturmuhr.
Der Pforzheimer Kameramann Sven Goldenbaum steuert derweil behutsam die Kamera per Funk und sieht die gestochen scharfen Bilder auf dem Display seines Steuergeräts. „Man braucht viel Fingerspitzengefühl“, betont Goldenbaum von der gleichnamigen Pforzheimer Medienagentur, die das Projekt für das Evangelische Medienhaus in Stuttgart umsetzt, das zu 100 Prozent zur Evangelischen Landeskirche in Württemberg gehört. Der Kirchturm von Wurmberg hat sich für den Versuch angeboten, weil es dort einen Riss unterhalb der Kirchturmuhr gibt, den man aufnehmen kann. So zeigt sich schnell, ob die Untersuchung per Fluggerät geeignet ist.
Mit dem neuen Verfahren können Gemeinden Geld sparen, weil für die Untersuchung kein teures Gerüst aufgestellt werden muss. Nach dem Pilotversuch in Wurmberg sollen die Ergebnisse genau untersucht werden.Der Film über den Wurmberger Kirchturm mit Rundblick und den Aufnahmen in schwindelerregender Höhe ist bereits auf Youtube zu sehen. Er steht im Internet unter www.youtube.com/watch?v=2_MGKLIQwV0
-
Quelle: Pforzheimer Zeitung

3731 Views

Donnerstag, 8. November 2012 - 14:00 Uhr

Raumfahrt - Ariane-V-VA 210-Start am Freitag

-

-

-

During activity in the Spaceport's S5 payload preparation building, Star One C3 begins its processing for Arianespace Flight VA210, while EUTELSAT 21B receives its propellant load. 
-
Ariane Flight VA210
The two satellite passengers to be carried on Arianespace’s Flight VA210 – the sixth Ariane 5 mission of 2012 from French Guiana – are undergoing checkout at the Spaceport for their November 9 liftoff.
Orbital Sciences Corporation’s Star One C3 spacecraft for Brazilian communications service provider Star One S.A. has begun its pre-launch processing in the S5 payload preparation facility, joining the Thales Alenia Space-built EUTELSAT 21B for Europe’s Eutelsat Communications – which currently is being fueled.
EUTELSAT 21B will have a liftoff mass of five metric tons, carrying 40 Ku-band transponders on its Spacebus 4000 platform.  To operate at Eutelsat’s 21.5° East orbital position, the satellite will enable Eutelsat to boost capacity at this orbital slot by almost 50 percent – providing relay services for telephone companies, enterprises and government administrations in Europe, North Africa, the Middle East and Central Asia.  
Star One C3 is based on Orbital’s GEOStar™ bus, and is to weigh in at under 3,200 kg.  It is fitted with a hybrid payload to provide C- and Ku-band communications for the South American region.
Arianespace’s five Ariane 5 missions conducted to date in 2012 from French Guiana have orbited eight satellites and one Automated Transfer Vehicle for servicing of the International Space Station. 
In addition to these heavy-lift flights, the company performed one medium-lift Soyuz mission so far this year from the Spaceport, lofting a pair of Galileo navigation system IOV (In-Orbit Validation) spacecraft, while a Soyuz launch conducted by Arianespace’s Starsem affiliate from Kazakhstan’s Baikonur Cosmodrome deployed the Metop-B weather satellite.
Adding to the 2012 activity was Arianespace’s support for the successful qualification launch of its light-lift Vega vehicle from French Guiana, with this maiden mission performed under responsibility of the European Space Agency.
Quelle: Arianespace
-
Update: 1.11.2012
-
-
-
-
The Eutelsat logo with an artist's depiction of EUTELSAT 21B's coverage footprint is positioned on the Ariane 5 payload fairing for Flight VA210, along with a logo for the Star One C3 satellite (photos at left). This activity was performed inside the Ariane 5 Final Assembly Building at the Spaceport, using an integration rig for the payload fairing (photo at right). 
-
Ariane Flights VA210 & VA211
Launch vehicle preparations for the next two Ariane 5 flights from French Guiana are moving forward at the Spaceport as Arianespace maintains the mission pace in 2012 with its heavy-lift workhorse.
Activity conducted this week included installation of customer graphics on the payload fairing for Ariane Flight VA210, which is to orbit the EUTELSAT 21B and Star One C3 telecommunications satellites on a launch scheduled for November 9.
As with all Ariane 5 flights, the vehicle’s ogive-shaped payload fairing – which protects its spacecraft passengers during ascent through the denser atmospheric layers – is made available for logos and other images that represent the mission's customers and their satellites. The fairing is jettisoned approximately three minutes after an Ariane 5’s liftoff.
For Flight VA210, team members working in the Ariane 5’s Final Assembly Building placed large decals on the fairing with the Eutelsat logo and an artistic representation of EUTELSAT 21B’s coverage area, along with a red and white logo for the Star One C3 satellite.
In parallel, a key milestone was reached for Arianespace’s Flight VA211 with the completion of initial build-up for its Ariane 5, which has been assembled inside the Spaceport’s Launcher Integration Building.  This step was marked with installation of the ESC-A upper stage and vehicle equipment bay as a single unit atop the vehicle’s cryogenic core stage.
In this upward view inside the Spaceport's Launcher Integration Building, the ESC-A upper stage and vehicle equipment bay are raised as a single unit for installation atop Flight VA211's Ariane 5.
-
Once additional integration and checkout steps are completed, the Ariane 5 will be ready for its transfer from the Launcher Integration Building to the Spaceport’s Final Assembly Building – currently occupied by Flight VA210’s Ariane 5.  The Final Assembly Building will become available once the Ariane 5 for Flight VA210 is transferred from this facility to the Spaceport’s ELA-3 launch zone on the day before liftoff.
Arianespace’s Flight VA211 is targeted for mid-December with a dual-payload of the Skynet 5D and Mexsat 3 satellites.
Preparations for these two upcoming launches continue a busy year for Arianespace’s heavy-lift Ariane 5. Previous missions during 2012 lofted Europe’s third Automated Transfer Vehicle for servicing of the International Space Station on March 23; the JCSAT-13 and VINASAT-2 telecommunications spacecraft on May 15; a mixed telecommunications/meteorological satellite payload of EchoStar XVII and MSG-3 on July 5; the Intelsat 20 and HYLAS 2 relay platforms on August 2; and the ASTRA 2F and GSAT-10 spacecraft on September 28.  
 
 
Quelle: arianespace
 
 
 
 
 
 
 
 

3349 Views

Donnerstag, 8. November 2012 - 12:00 Uhr

Astronomie - Neue Super-Erde bei HD-40307 entdeckt

-

Ein internationales Forscherteam findet Sonnensystem mit Planet, der erdähnliche Bedingungen aufweist
(pug) Ein internationales Wissenschaftlerteam unter der Leitung der Universität Hertfordshire und der Universität Göttingen hat eine neue Super-Erde mit möglicherweise erdähnlichen Bedingungen und idealen Voraussetzungen für das Entstehen von Leben entdeckt. Diese neue Super-Erde ist einer von sechs Planeten, die um den benachbarten Stern HD 40307 kreisen. Bislang waren drei der sechs Planeten um diesen Stern bekannt, die sich aber zu nahe am Stern aufhalten und zu heiß für die Entstehung von Leben sind. Die Wissenschaftler entdeckten nun gleich drei neue Planeten um den Stern, einer von ihnen ist in seinen Eigenschaften der Erde sehr ähnlich. Die Entdeckung basiert auf einer neuen Analyse von Daten des European Southern Observatory in Chile. Die Ergebnisse sind in der Fachzeitschrift Astronomy and Astrophysics erschienen.
Der Stern HD 40307 befindet sich im Sternbild Pictor und ist etwa 42 Lichtjahre entfernt. Er ist etwa 20 Prozent leichter als die Sonne und beherbergt sechs Planeten, die sogenannte Super-Erden sind – also bis zu zehnmal schwerer sind als die Erde – und vermutlich eine feste Oberfläche haben. „Planetensysteme mit mehreren Super-Erden sind bereits bei mehreren hellen, gut untersuchten Sternen bekannt. Deshalb gehen wir davon aus, dass solche Systeme mit vielen Planeten, wie auch in unserem Sonnensystem, keine Ausnahme sind“, sagt Dr. Guillem Anglada-Escudé, einer der Leiter der Studie vom Institut für Astrophysik der Universität Göttingen. Fünf der sechs Planeten bewegen sich auf sehr engen Umlaufbahnen, wo die Nähe zum Zentralstern die Planetenoberfläche auf Temperaturen heizt, bei denen Wasser in flüssiger Form nicht vorkommen kann. 
„Das Juwel des Systems ist aber der neue Planet mit dem größten Abstand zum Zentralstern“, sagt Prof. Dr. Ansgar Reiners von der Universität Göttingen, der an der Entdeckung mitgewirkt hat. Der Planet bewegt sich auf einer Umlaufbahn von 200 Tagen und erhält dort etwa so viel Strahlungsenergie von seinem Zentralstern wie die Erde auf ihrer Bahn um die Sonne. „Er ist etwa sieben Mal schwerer als die Erde und kreist um einen sehr wenig aktiven Stern. Es gibt keinen Grund, weshalb der Planet kein erdähnliches Klima entwickeln kann“, so Dr. Anglada-Escudé. 
Da der Planet von seinem Stern etwa so viel Energie wie die Erde von der Sonne erhält, ist die Wahrscheinlichkeit von Leben stark erhöht. Der Planet könnte über flüssiges Wasser und eine stabile Atmosphäre verfügen. Vielleicht noch wichtiger ist, dass er sich wie die Erde um sich selbst drehen kann und dem Stern vermutlich nicht immer dieselbe Seite zuwendet. „Das hat einen Tag-Nacht-Effekt zur Folge und kann für die Entstehung eines stabilen Klimas wichtig sein“, sagen die Forscher. 
-
Quelle: UNI Göttingen
-

3236 Views


Weitere 9 Nachrichten nachladen...