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TOPIC: Hubble Space Telescope
Blobrana


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RE: Hubble Space Telescope
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FIRST IMAGES FROM REJUVENATED HUBBLE
NASA's Hubble Space Telescope is back in business, ready to uncover new worlds, peer ever deeper into space, and even map the invisible backbone of the universe. The first snapshots from the refurbished Hubble showcase the 19-year-old telescope's new vision. Topping the list of exciting new views are colourful multi-wavelength pictures of far-flung galaxies, a densely packed star cluster, an eerie "pillar of creation," and a "butterfly" nebula. With its new imaging camera, Hubble can view galaxies, star clusters, and other objects across a wide swath of the electromagnetic spectrum, from ultraviolet to near-infrared light. A new spectrograph slices across billions of light-years to map the filamentary structure of the universe and trace the distribution of elements that are fundamental to life. The telescope's new instruments also are more sensitive to light and can observe in ways that are significantly more efficient and require less observing time than previous generations of Hubble instruments. NASA astronauts installed the new instruments during the space shuttle servicing mission in May 2009. Besides adding the instruments, the astronauts also completed a dizzying list of other chores that included performing unprecedented repairs on two other science instruments.

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NASA Webcast Connects Students with Astronauts, New Hubble Images
NASA Administrator Charles Bolden and space shuttle astronauts will participate in live education webcasts on Sept. 8 at 2 p.m. EDT and Sept. 10 at 1 p.m.

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NASA will hold news briefings at 15:00 GMT, 9th September, to release and discuss the first images from the newly refurbished Hubble Space Telescope.

Source NASA

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Hubble bounces back from alarming glitch
A computer in the observatory's new data handling unit reportedly seized up inexplicably early Monday, forcing engineers on Earth to reboot the space telescope remotely.

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WFC3 IR sensor
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Teledyne Technologies Incorporated announced today that its subsidiary, Teledyne Scientific & Imaging, LLC ("TS&I") has played a key role in the Hubble Space Telescope (HST) Servicing Mission 4, with technologies from Teledyne installed in two HST instruments. Teledyne's new type of infrared imaging sensor in the Wide Field Camera 3 (WFC3) instrument is designed to enable the HST to see further in the Universe, and Teledyne's new electronics chip, the SIDECAR ASIC, is central to the repair of the Advanced Camera for Surveys (ACS), bringing back on-line the most popular instrument of the HST. These two instruments combine to provide HST with a significantly improved capability for wide field imaging, with many discoveries expected to follow.
The WFC3 opens a new era of discovery by the Hubble Space Telescope. Nearly all of the iconic Hubble images have been taken with CCDs that are primarily sensitive to visible light. Until now, infrared (IR) imaging has been constrained by the small 256x256 pixel detectors of the Near Infrared Camera and Multi-Object Spectrometer (NICMOS) instrument, which were state-of-the-art when NICMOS was installed in the HST in 1997. Teledyne's 1024x1024 pixel IR sensor in WFC3 opens the door to wide field IR imaging by providing a sixteen-fold increase in the number of IR pixels. In addition, the IR array has higher quantum efficiency, lower readout noise, and lower dark current. Combined with the high efficiency of the WFC3 optics, the IR imager of WFC3 provides up to 30 times increase in discovery efficiency in the near IR spectrum.
The WFC3 IR sensor uses a new detector technology pioneered by Teledyne called "substrate-removed HgCdTe". It provides improved IR sensitivity, significantly reduces noise from cosmic rays, and introduces sensitivity to visible light enabling a single instrument to simultaneously measure both visible and infrared light. Already operating on NASA's Moon Mineralogy Mapper, Teledyne has delivered substrate-removed HgCdTe focal plane arrays for the James Webb Space Telescope and for the WISE space astronomy mission scheduled to launch in November 2009. Teledyne's substrate-removed HgCdTe focal plane array is the baseline technology for several future space astronomy and Earth observation missions.

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Blobrana


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The historic and successful Hubble Servicing Mission 4 concluded with a trouble-free Space Shuttle landing on Sunday. During a series of unprecedented spacewalks, astronauts replaced and repaired a total of four instruments. The Wide Field Camera 3 and Cosmic Origins Spectrograph were installed and the Advanced Camera for Surveys and Space Telescope Imaging Spectrograph were successfully repaired.
The remarkably successful Servicing Mission 4 - the fifth and final visit of the Space Shuttle to the NASA/ESA Hubble Space Telescope - came to an end with a picture-perfect landing at Edwards Air Force Base in California on Sunday.

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Why Hubble is worth every penny
Space is an interesting subject. It arguably matters most to our knowledge of life. Understanding issues affecting the universe today will help us recognise them as they impact our lives going forward. And since we simply don't have the ability to explore space the way it would be required to fully understand our history, it's the Hubble Space Telescope that we must rely on to provide that for us.

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Space-walking astronauts complete Hubble telescope repairs



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Spacewalkers' specially designed tools couldn't dislodge a balky bolt interfering with repairs Sunday at the Hubble Space Telescope. So they took an approach more familiar to people puttering around down on Earth: brute force.
And it worked. But it set spacewalkers so far behind that they couldn't get all their tasks done.

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Today's page looks at the amazing Hubble Telescope and the Space Age effort to repair it.
SINCE the beginning of time, man has looked up into space with amazement and wonder. Wonder turned to scientific study. Astronomy is the study of objects and matter outside of the Earth's atmosphere.
The ancient Egyptians were among the first to study space. The placement of the three Great Pyramids was based on the alignment of the stars.
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